21931195

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{829}}^1$

素因数の和:895

約数の個数: 32

約数和(自身を含む): 31792320

約数和(自身を除く): 9861125

約数列:

[1, 5, 11, 13, 37, 55, 65, 143, 185, 407, 481, 715, 829, 2035, 2405, 4145, 5291, 9119, 10777, 26455, 30673, 45595, 53885, 118547, 153365, 337403, 398749, 592735, 1687015, 1993745, 4386239, 21931195]

約数ペア:

[(1, 21931195), (5, 4386239), (11, 1993745), (13, 1687015), (37, 592735), (55, 398749), (65, 337403), (143, 153365), (185, 118547), (407, 53885), (481, 45595), (715, 30673), (829, 26455), (2035, 10777), (2405, 9119), (4145, 5291)]