21096725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{467}}^1$

素因数の和:629

約数の個数: 24

約数和(自身を含む): 28435680

約数和(自身を除く): 7338955

約数列:

[1, 5, 13, 25, 65, 139, 325, 467, 695, 1807, 2335, 3475, 6071, 9035, 11675, 30355, 45175, 64913, 151775, 324565, 843869, 1622825, 4219345, 21096725]

約数ペア:

[(1, 21096725), (5, 4219345), (13, 1622825), (25, 843869), (65, 324565), (139, 151775), (325, 64913), (467, 45175), (695, 30355), (1807, 11675), (2335, 9035), (3475, 6071)]