20669876

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{149}}^1\times {\mathrm{439}}^1$

素因数の和:671

約数の個数: 24

約数和(自身を含む): 36960000

約数和(自身を除く): 16290124

約数列:

[1, 2, 4, 79, 149, 158, 298, 316, 439, 596, 878, 1756, 11771, 23542, 34681, 47084, 65411, 69362, 130822, 138724, 261644, 5167469, 10334938, 20669876]

約数ペア:

[(1, 20669876), (2, 10334938), (4, 5167469), (79, 261644), (149, 138724), (158, 130822), (298, 69362), (316, 65411), (439, 47084), (596, 34681), (878, 23542), (1756, 11771)]