21731003

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1499}}^1$

素因数の和:1634

約数の個数: 16

約数和(自身を含む): 26400000

約数和(自身を除く): 4668997

約数列:

[1, 7, 19, 109, 133, 763, 1499, 2071, 10493, 14497, 28481, 163391, 199367, 1143737, 3104429, 21731003]

約数ペア:

[(1, 21731003), (7, 3104429), (19, 1143737), (109, 199367), (133, 163391), (763, 28481), (1499, 14497), (2071, 10493)]