20813796

素因数分解:

$2^2\times 3^2\times {\mathrm{163}}^1\times {\mathrm{3547}}^1$

素因数の和:3720

約数の個数: 36

約数和(自身を含む): 52950352

約数和(自身を除く): 32136556

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 163, 326, 489, 652, 978, 1467, 1956, 2934, 3547, 5868, 7094, 10641, 14188, 21282, 31923, 42564, 63846, 127692, 578161, 1156322, 1734483, 2312644, 3468966, 5203449, 6937932, 10406898, 20813796]

約数ペア:

[(1, 20813796), (2, 10406898), (3, 6937932), (4, 5203449), (6, 3468966), (9, 2312644), (12, 1734483), (18, 1156322), (36, 578161), (163, 127692), (326, 63846), (489, 42564), (652, 31923), (978, 21282), (1467, 14188), (1956, 10641), (2934, 7094), (3547, 5868)]