20688612

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{1511}}^1$

素因数の和:1688

約数の個数: 48

約数和(自身を含む): 55544832

約数和(自身を除く): 34856220

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 163, 326, 489, 652, 978, 1141, 1511, 1956, 2282, 3022, 3423, 4533, 4564, 6044, 6846, 9066, 10577, 13692, 18132, 21154, 31731, 42308, 63462, 126924, 246293, 492586, 738879, 985172, 1477758, 1724051, 2955516, 3448102, 5172153, 6896204, 10344306, 20688612]

約数ペア:

[(1, 20688612), (2, 10344306), (3, 6896204), (4, 5172153), (6, 3448102), (7, 2955516), (12, 1724051), (14, 1477758), (21, 985172), (28, 738879), (42, 492586), (84, 246293), (163, 126924), (326, 63462), (489, 42308), (652, 31731), (978, 21154), (1141, 18132), (1511, 13692), (1956, 10577), (2282, 9066), (3022, 6846), (3423, 6044), (4533, 4564)]