20122487

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1009}}^1$

素因数の和:1071

約数の個数: 24

約数和(自身を含む): 26251920

約数和(自身を除く): 6129433

約数列:

[1, 7, 11, 37, 49, 77, 259, 407, 539, 1009, 1813, 2849, 7063, 11099, 19943, 37333, 49441, 77693, 261331, 410663, 543851, 1829317, 2874641, 20122487]

約数ペア:

[(1, 20122487), (7, 2874641), (11, 1829317), (37, 543851), (49, 410663), (77, 261331), (259, 77693), (407, 49441), (539, 37333), (1009, 19943), (1813, 11099), (2849, 7063)]