21619710

素因数分解:

$2^1\times 3^5\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:101

約数の個数: 192

約数和(自身を含む): 70447104

約数和(自身を除く): 48827394

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 31, 35, 41, 42, 45, 54, 62, 63, 70, 81, 82, 90, 93, 105, 123, 126, 135, 155, 162, 186, 189, 205, 210, 217, 243, 246, 270, 279, 287, 310, 315, 369, 378, 405, 410, 434, 465, 486, 558, 567, 574, 615, 630, 651, 738, 810, 837, 861, 930, 945, 1085, 1107, 1134, 1215, 1230, 1271, 1302, 1395, 1435, 1674, 1701, 1722, 1845, 1890, 1953, 2170, 2214, 2430, 2511, 2542, 2583, 2790, 2835, 2870, 3255, 3321, 3402, 3690, 3813, 3906, 4185, 4305, 5022, 5166, 5535, 5670, 5859, 6355, 6510, 6642, 7533, 7626, 7749, 8370, 8505, 8610, 8897, 9765, 9963, 11070, 11439, 11718, 12555, 12710, 12915, 15066, 15498, 16605, 17010, 17577, 17794, 19065, 19530, 19926, 22878, 23247, 25110, 25830, 26691, 29295, 33210, 34317, 35154, 37665, 38130, 38745, 44485, 46494, 49815, 52731, 53382, 57195, 58590, 68634, 69741, 75330, 77490, 80073, 87885, 88970, 99630, 102951, 105462, 114390, 116235, 133455, 139482, 160146, 171585, 175770, 205902, 232470, 240219, 263655, 266910, 308853, 343170, 348705, 400365, 480438, 514755, 527310, 617706, 697410, 720657, 800730, 1029510, 1201095, 1441314, 1544265, 2161971, 2402190, 3088530, 3603285, 4323942, 7206570, 10809855, 21619710]

約数ペア:

[(1, 21619710), (2, 10809855), (3, 7206570), (5, 4323942), (6, 3603285), (7, 3088530), (9, 2402190), (10, 2161971), (14, 1544265), (15, 1441314), (18, 1201095), (21, 1029510), (27, 800730), (30, 720657), (31, 697410), (35, 617706), (41, 527310), (42, 514755), (45, 480438), (54, 400365), (62, 348705), (63, 343170), (70, 308853), (81, 266910), (82, 263655), (90, 240219), (93, 232470), (105, 205902), (123, 175770), (126, 171585), (135, 160146), (155, 139482), (162, 133455), (186, 116235), (189, 114390), (205, 105462), (210, 102951), (217, 99630), (243, 88970), (246, 87885), (270, 80073), (279, 77490), (287, 75330), (310, 69741), (315, 68634), (369, 58590), (378, 57195), (405, 53382), (410, 52731), (434, 49815), (465, 46494), (486, 44485), (558, 38745), (567, 38130), (574, 37665), (615, 35154), (630, 34317), (651, 33210), (738, 29295), (810, 26691), (837, 25830), (861, 25110), (930, 23247), (945, 22878), (1085, 19926), (1107, 19530), (1134, 19065), (1215, 17794), (1230, 17577), (1271, 17010), (1302, 16605), (1395, 15498), (1435, 15066), (1674, 12915), (1701, 12710), (1722, 12555), (1845, 11718), (1890, 11439), (1953, 11070), (2170, 9963), (2214, 9765), (2430, 8897), (2511, 8610), (2542, 8505), (2583, 8370), (2790, 7749), (2835, 7626), (2870, 7533), (3255, 6642), (3321, 6510), (3402, 6355), (3690, 5859), (3813, 5670), (3906, 5535), (4185, 5166), (4305, 5022)]