21197110

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{1471}}^1$

素因数の和:1620

約数の個数: 32

約数和(自身を含む): 41969664

約数和(自身を除く): 20772554

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 131, 262, 655, 1310, 1441, 1471, 2882, 2942, 7205, 7355, 14410, 14710, 16181, 32362, 80905, 161810, 192701, 385402, 963505, 1927010, 2119711, 4239422, 10598555, 21197110]

約数ペア:

[(1, 21197110), (2, 10598555), (5, 4239422), (10, 2119711), (11, 1927010), (22, 963505), (55, 385402), (110, 192701), (131, 161810), (262, 80905), (655, 32362), (1310, 16181), (1441, 14710), (1471, 14410), (2882, 7355), (2942, 7205)]