28021644

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1$

素因数の和:276

約数の個数: 144

約数和(自身を含む): 88897536

約数和(自身を除く): 60875892

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 28, 31, 34, 36, 42, 51, 62, 63, 68, 84, 93, 102, 119, 124, 126, 153, 186, 204, 211, 217, 238, 252, 279, 306, 357, 372, 422, 434, 476, 527, 558, 612, 633, 651, 714, 844, 868, 1054, 1071, 1116, 1266, 1302, 1428, 1477, 1581, 1899, 1953, 2108, 2142, 2532, 2604, 2954, 3162, 3587, 3689, 3798, 3906, 4284, 4431, 4743, 5908, 6324, 6541, 7174, 7378, 7596, 7812, 8862, 9486, 10761, 11067, 13082, 13293, 14348, 14756, 17724, 18972, 19623, 21522, 22134, 25109, 26164, 26586, 32283, 33201, 39246, 43044, 44268, 45787, 50218, 53172, 58869, 64566, 66402, 75327, 78492, 91574, 100436, 111197, 117738, 129132, 132804, 137361, 150654, 183148, 222394, 225981, 235476, 274722, 301308, 333591, 412083, 444788, 451962, 549444, 667182, 778379, 824166, 903924, 1000773, 1334364, 1556758, 1648332, 2001546, 2335137, 3113516, 4003092, 4670274, 7005411, 9340548, 14010822, 28021644]

約数ペア:

[(1, 28021644), (2, 14010822), (3, 9340548), (4, 7005411), (6, 4670274), (7, 4003092), (9, 3113516), (12, 2335137), (14, 2001546), (17, 1648332), (18, 1556758), (21, 1334364), (28, 1000773), (31, 903924), (34, 824166), (36, 778379), (42, 667182), (51, 549444), (62, 451962), (63, 444788), (68, 412083), (84, 333591), (93, 301308), (102, 274722), (119, 235476), (124, 225981), (126, 222394), (153, 183148), (186, 150654), (204, 137361), (211, 132804), (217, 129132), (238, 117738), (252, 111197), (279, 100436), (306, 91574), (357, 78492), (372, 75327), (422, 66402), (434, 64566), (476, 58869), (527, 53172), (558, 50218), (612, 45787), (633, 44268), (651, 43044), (714, 39246), (844, 33201), (868, 32283), (1054, 26586), (1071, 26164), (1116, 25109), (1266, 22134), (1302, 21522), (1428, 19623), (1477, 18972), (1581, 17724), (1899, 14756), (1953, 14348), (2108, 13293), (2142, 13082), (2532, 11067), (2604, 10761), (2954, 9486), (3162, 8862), (3587, 7812), (3689, 7596), (3798, 7378), (3906, 7174), (4284, 6541), (4431, 6324), (4743, 5908)]