221321772

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{691}}^1$

素因数の和:780

約数の個数: 144

約数和(自身を含む): 677074944

約数和(自身を除く): 455753172

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 31, 36, 41, 42, 62, 63, 82, 84, 93, 123, 124, 126, 164, 186, 217, 246, 252, 279, 287, 369, 372, 434, 492, 558, 574, 651, 691, 738, 861, 868, 1116, 1148, 1271, 1302, 1382, 1476, 1722, 1953, 2073, 2542, 2583, 2604, 2764, 3444, 3813, 3906, 4146, 4837, 5084, 5166, 6219, 7626, 7812, 8292, 8897, 9674, 10332, 11439, 12438, 14511, 15252, 17794, 19348, 21421, 22878, 24876, 26691, 28331, 29022, 35588, 42842, 43533, 45756, 53382, 56662, 58044, 64263, 80073, 84993, 85684, 87066, 106764, 113324, 128526, 149947, 160146, 169986, 174132, 192789, 198317, 254979, 257052, 299894, 320292, 339972, 385578, 396634, 449841, 509958, 594951, 599788, 771156, 793268, 878261, 899682, 1019916, 1189902, 1349523, 1756522, 1784853, 1799364, 2379804, 2634783, 2699046, 3513044, 3569706, 5269566, 5398092, 6147827, 7139412, 7904349, 10539132, 12295654, 15808698, 18443481, 24591308, 31617396, 36886962, 55330443, 73773924, 110660886, 221321772]

約数ペア:

[(1, 221321772), (2, 110660886), (3, 73773924), (4, 55330443), (6, 36886962), (7, 31617396), (9, 24591308), (12, 18443481), (14, 15808698), (18, 12295654), (21, 10539132), (28, 7904349), (31, 7139412), (36, 6147827), (41, 5398092), (42, 5269566), (62, 3569706), (63, 3513044), (82, 2699046), (84, 2634783), (93, 2379804), (123, 1799364), (124, 1784853), (126, 1756522), (164, 1349523), (186, 1189902), (217, 1019916), (246, 899682), (252, 878261), (279, 793268), (287, 771156), (369, 599788), (372, 594951), (434, 509958), (492, 449841), (558, 396634), (574, 385578), (651, 339972), (691, 320292), (738, 299894), (861, 257052), (868, 254979), (1116, 198317), (1148, 192789), (1271, 174132), (1302, 169986), (1382, 160146), (1476, 149947), (1722, 128526), (1953, 113324), (2073, 106764), (2542, 87066), (2583, 85684), (2604, 84993), (2764, 80073), (3444, 64263), (3813, 58044), (3906, 56662), (4146, 53382), (4837, 45756), (5084, 43533), (5166, 42842), (6219, 35588), (7626, 29022), (7812, 28331), (8292, 26691), (8897, 24876), (9674, 22878), (10332, 21421), (11439, 19348), (12438, 17794), (14511, 15252)]