21267906

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{4079}}^1$

素因数の和:4174

約数の個数: 32

約数和(自身を含む): 47001600

約数和(自身を除く): 25733694

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 79, 158, 237, 474, 869, 1738, 2607, 4079, 5214, 8158, 12237, 24474, 44869, 89738, 134607, 269214, 322241, 644482, 966723, 1933446, 3544651, 7089302, 10633953, 21267906]

約数ペア:

[(1, 21267906), (2, 10633953), (3, 7089302), (6, 3544651), (11, 1933446), (22, 966723), (33, 644482), (66, 322241), (79, 269214), (158, 134607), (237, 89738), (474, 44869), (869, 24474), (1738, 12237), (2607, 8158), (4079, 5214)]