21132265

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{419}}^1$

素因数の和:573

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 10801175

約数列:

[1, 5, 7, 11, 35, 55, 77, 131, 385, 419, 655, 917, 1441, 2095, 2933, 4585, 4609, 7205, 10087, 14665, 23045, 32263, 50435, 54889, 161315, 274445, 384223, 603779, 1921115, 3018895, 4226453, 21132265]

約数ペア:

[(1, 21132265), (5, 4226453), (7, 3018895), (11, 1921115), (35, 603779), (55, 384223), (77, 274445), (131, 161315), (385, 54889), (419, 50435), (655, 32263), (917, 23045), (1441, 14665), (2095, 10087), (2933, 7205), (4585, 4609)]