20347664

素因数分解:

$2^4\times {\mathrm{821}}^1\times {\mathrm{1549}}^1$

素因数の和:2378

約数の個数: 20

約数和(自身を含む): 39497100

約数和(自身を除く): 19149436

約数列:

[1, 2, 4, 8, 16, 821, 1549, 1642, 3098, 3284, 6196, 6568, 12392, 13136, 24784, 1271729, 2543458, 5086916, 10173832, 20347664]

約数ペア:

[(1, 20347664), (2, 10173832), (4, 5086916), (8, 2543458), (16, 1271729), (821, 24784), (1549, 13136), (1642, 12392), (3098, 6568), (3284, 6196)]