20891650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{32141}}^1$

素因数の和:32166

約数の個数: 24

約数和(自身を含む): 41848884

約数和(自身を除く): 20957234

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 32141, 64282, 160705, 321410, 417833, 803525, 835666, 1607050, 2089165, 4178330, 10445825, 20891650]

約数ペア:

[(1, 20891650), (2, 10445825), (5, 4178330), (10, 2089165), (13, 1607050), (25, 835666), (26, 803525), (50, 417833), (65, 321410), (130, 160705), (325, 64282), (650, 32141)]