21112179

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{12071}}^1$

素因数の和:12138

約数の個数: 16

約数和(自身を含む): 31290624

約数和(自身を除く): 10178445

約数列:

[1, 3, 11, 33, 53, 159, 583, 1749, 12071, 36213, 132781, 398343, 639763, 1919289, 7037393, 21112179]

約数ペア:

[(1, 21112179), (3, 7037393), (11, 1919289), (33, 639763), (53, 398343), (159, 132781), (583, 36213), (1749, 12071)]