21461479

素因数分解:

${\mathrm{13}}^2\times {\mathrm{29}}^2\times {\mathrm{151}}^1$

素因数の和:235

約数の個数: 18

約数和(自身を含む): 24227736

約数和(自身を除く): 2766257

約数列:

[1, 13, 29, 151, 169, 377, 841, 1963, 4379, 4901, 10933, 25519, 56927, 126991, 142129, 740051, 1650883, 21461479]

約数ペア:

[(1, 21461479), (13, 1650883), (29, 740051), (151, 142129), (169, 126991), (377, 56927), (841, 25519), (1963, 10933), (4379, 4901)]