21440694

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{1993}}^1$

素因数の和:2172

約数の個数: 32

約数和(自身を含む): 47090304

約数和(自身を除く): 25649610

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 163, 326, 489, 978, 1793, 1993, 3586, 3986, 5379, 5979, 10758, 11958, 21923, 43846, 65769, 131538, 324859, 649718, 974577, 1949154, 3573449, 7146898, 10720347, 21440694]

約数ペア:

[(1, 21440694), (2, 10720347), (3, 7146898), (6, 3573449), (11, 1949154), (22, 974577), (33, 649718), (66, 324859), (163, 131538), (326, 65769), (489, 43846), (978, 21923), (1793, 11958), (1993, 10758), (3586, 5979), (3986, 5379)]