21325087

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1471}}^1$

素因数の和:1606

約数の個数: 16

約数和(自身を含む): 25907200

約数和(自身を除く): 4582113

約数列:

[1, 7, 19, 109, 133, 763, 1471, 2071, 10297, 14497, 27949, 160339, 195643, 1122373, 3046441, 21325087]

約数ペア:

[(1, 21325087), (7, 3046441), (19, 1122373), (109, 195643), (133, 160339), (763, 27949), (1471, 14497), (2071, 10297)]