2155287407

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{640121}}^1$

素因数の和:640178

約数の個数: 16

約数和(自身を含む): 2724359232

約数和(自身を除く): 569071825

約数列:

[1, 7, 13, 37, 91, 259, 481, 3367, 640121, 4480847, 8321573, 23684477, 58251011, 165791339, 307898201, 2155287407]

約数ペア:

[(1, 2155287407), (7, 307898201), (13, 165791339), (37, 58251011), (91, 23684477), (259, 8321573), (481, 4480847), (3367, 640121)]