21035859

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{10177}}^1$

素因数の和:10246

約数の個数: 16

約数和(自身を含む): 30778272

約数和(自身を除く): 9742413

約数列:

[1, 3, 13, 39, 53, 159, 689, 2067, 10177, 30531, 132301, 396903, 539381, 1618143, 7011953, 21035859]

約数ペア:

[(1, 21035859), (3, 7011953), (13, 1618143), (39, 539381), (53, 396903), (159, 132301), (689, 30531), (2067, 10177)]