20756428

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67391}}^1$

素因数の和:67413

約数の個数: 24

約数和(自身を含む): 45287424

約数和(自身を除く): 24530996

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 67391, 134782, 269564, 471737, 741301, 943474, 1482602, 1886948, 2965204, 5189107, 10378214, 20756428]

約数ペア:

[(1, 20756428), (2, 10378214), (4, 5189107), (7, 2965204), (11, 1886948), (14, 1482602), (22, 943474), (28, 741301), (44, 471737), (77, 269564), (154, 134782), (308, 67391)]