21755305

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{30427}}^1$

素因数の和:30456

約数の個数: 16

約数和(自身を含む): 30671424

約数和(自身を除く): 8916119

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 30427, 152135, 334697, 395551, 1673485, 1977755, 4351061, 21755305]

約数ペア:

[(1, 21755305), (5, 4351061), (11, 1977755), (13, 1673485), (55, 395551), (65, 334697), (143, 152135), (715, 30427)]