21880191

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{1427}}^1$

素因数の和:1718

約数の個数: 16

約数和(自身を含む): 30844800

約数和(自身を除く): 8964609

約数列:

[1, 3, 19, 57, 269, 807, 1427, 4281, 5111, 15333, 27113, 81339, 383863, 1151589, 7293397, 21880191]

約数ペア:

[(1, 21880191), (3, 7293397), (19, 1151589), (57, 383863), (269, 81339), (807, 27113), (1427, 15333), (4281, 5111)]