21205291212

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{6907}}^1$

素因数の和:7089

約数の個数: 192

約数和(自身を含む): 65361838080

約数和(自身を除く): 44156546868

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 31, 36, 42, 54, 62, 63, 84, 93, 108, 124, 126, 131, 186, 189, 217, 252, 262, 279, 372, 378, 393, 434, 524, 558, 651, 756, 786, 837, 868, 917, 1116, 1179, 1302, 1572, 1674, 1834, 1953, 2358, 2604, 2751, 3348, 3537, 3668, 3906, 4061, 4716, 5502, 5859, 6907, 7074, 7812, 8122, 8253, 11004, 11718, 12183, 13814, 14148, 16244, 16506, 20721, 23436, 24366, 24759, 27628, 28427, 33012, 36549, 41442, 48349, 48732, 49518, 56854, 62163, 73098, 82884, 85281, 96698, 99036, 109647, 113708, 124326, 145047, 146196, 170562, 186489, 193396, 214117, 219294, 248652, 255843, 290094, 341124, 372978, 428234, 435141, 438588, 511686, 580188, 642351, 745956, 767529, 856468, 870282, 904817, 1023372, 1284702, 1305423, 1498819, 1535058, 1740564, 1809634, 1927053, 2569404, 2610846, 2714451, 2997638, 3070116, 3619268, 3854106, 4496457, 5221692, 5428902, 5781159, 5995276, 6333719, 7708212, 8143353, 8992914, 10857804, 11562318, 12667438, 13489371, 16286706, 17985828, 19001157, 23124636, 24430059, 25334876, 26978742, 28049327, 32573412, 38002314, 40468113, 48860118, 53957484, 56098654, 57003471, 76004628, 80936226, 84147981, 97720236, 112197308, 114006942, 161872452, 168295962, 171010413, 196345289, 228013884, 252443943, 336591924, 342020826, 392690578, 504887886, 589035867, 684041652, 757331829, 785381156, 1009775772, 1178071734, 1514663658, 1767107601, 2356143468, 3029327316, 3534215202, 5301322803, 7068430404, 10602645606, 21205291212]

約数ペア:

[(1, 21205291212), (2, 10602645606), (3, 7068430404), (4, 5301322803), (6, 3534215202), (7, 3029327316), (9, 2356143468), (12, 1767107601), (14, 1514663658), (18, 1178071734), (21, 1009775772), (27, 785381156), (28, 757331829), (31, 684041652), (36, 589035867), (42, 504887886), (54, 392690578), (62, 342020826), (63, 336591924), (84, 252443943), (93, 228013884), (108, 196345289), (124, 171010413), (126, 168295962), (131, 161872452), (186, 114006942), (189, 112197308), (217, 97720236), (252, 84147981), (262, 80936226), (279, 76004628), (372, 57003471), (378, 56098654), (393, 53957484), (434, 48860118), (524, 40468113), (558, 38002314), (651, 32573412), (756, 28049327), (786, 26978742), (837, 25334876), (868, 24430059), (917, 23124636), (1116, 19001157), (1179, 17985828), (1302, 16286706), (1572, 13489371), (1674, 12667438), (1834, 11562318), (1953, 10857804), (2358, 8992914), (2604, 8143353), (2751, 7708212), (3348, 6333719), (3537, 5995276), (3668, 5781159), (3906, 5428902), (4061, 5221692), (4716, 4496457), (5502, 3854106), (5859, 3619268), (6907, 3070116), (7074, 2997638), (7812, 2714451), (8122, 2610846), (8253, 2569404), (11004, 1927053), (11718, 1809634), (12183, 1740564), (13814, 1535058), (14148, 1498819), (16244, 1305423), (16506, 1284702), (20721, 1023372), (23436, 904817), (24366, 870282), (24759, 856468), (27628, 767529), (28427, 745956), (33012, 642351), (36549, 580188), (41442, 511686), (48349, 438588), (48732, 435141), (49518, 428234), (56854, 372978), (62163, 341124), (73098, 290094), (82884, 255843), (85281, 248652), (96698, 219294), (99036, 214117), (109647, 193396), (113708, 186489), (124326, 170562), (145047, 146196)]