22138940

素因数分解:

$2^2\times 5^1\times {\mathrm{991}}^1\times {\mathrm{1117}}^1$

素因数の和:2117

約数の個数: 24

約数和(自身を含む): 46580352

約数和(自身を除く): 24441412

約数列:

[1, 2, 4, 5, 10, 20, 991, 1117, 1982, 2234, 3964, 4468, 4955, 5585, 9910, 11170, 19820, 22340, 1106947, 2213894, 4427788, 5534735, 11069470, 22138940]

約数ペア:

[(1, 22138940), (2, 11069470), (4, 5534735), (5, 4427788), (10, 2213894), (20, 1106947), (991, 22340), (1117, 19820), (1982, 11170), (2234, 9910), (3964, 5585), (4468, 4955)]