9902869921

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{563}}^1\times {\mathrm{601}}^1$

素因数の和:1321

約数の個数: 32

約数和(自身を含む): 11766682368

約数和(自身を除く): 1863812447

約数列:

[1, 7, 37, 113, 259, 563, 601, 791, 3941, 4181, 4207, 20831, 22237, 29267, 63619, 67913, 145817, 155659, 338363, 445333, 475391, 2353903, 2368541, 2512781, 12519431, 16477321, 17589467, 38235019, 87636017, 267645133, 1414695703, 9902869921]

約数ペア:

[(1, 9902869921), (7, 1414695703), (37, 267645133), (113, 87636017), (259, 38235019), (563, 17589467), (601, 16477321), (791, 12519431), (3941, 2512781), (4181, 2368541), (4207, 2353903), (20831, 475391), (22237, 445333), (29267, 338363), (63619, 155659), (67913, 145817)]