21716669

素因数分解:

${\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:237

約数の個数: 24

約数和(自身を含む): 25368192

約数和(自身を除く): 3651523

約数列:

[1, 13, 23, 37, 151, 169, 299, 481, 851, 1963, 3473, 3887, 5587, 6253, 11063, 25519, 45149, 72631, 128501, 143819, 586937, 944203, 1670513, 21716669]

約数ペア:

[(1, 21716669), (13, 1670513), (23, 944203), (37, 586937), (151, 143819), (169, 128501), (299, 72631), (481, 45149), (851, 25519), (1963, 11063), (3473, 6253), (3887, 5587)]