621009004

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{19963}}^1$

素因数の和:20086

約数の個数: 48

約数和(自身を含む): 1368412416

約数和(自身を除く): 747403412

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 101, 154, 202, 308, 404, 707, 1111, 1414, 2222, 2828, 4444, 7777, 15554, 19963, 31108, 39926, 79852, 139741, 219593, 279482, 439186, 558964, 878372, 1537151, 2016263, 3074302, 4032526, 6148604, 8065052, 14113841, 22178893, 28227682, 44357786, 56455364, 88715572, 155252251, 310504502, 621009004]

約数ペア:

[(1, 621009004), (2, 310504502), (4, 155252251), (7, 88715572), (11, 56455364), (14, 44357786), (22, 28227682), (28, 22178893), (44, 14113841), (77, 8065052), (101, 6148604), (154, 4032526), (202, 3074302), (308, 2016263), (404, 1537151), (707, 878372), (1111, 558964), (1414, 439186), (2222, 279482), (2828, 219593), (4444, 139741), (7777, 79852), (15554, 39926), (19963, 31108)]