20931790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17299}}^1$

素因数の和:17328

約数の個数: 24

約数和(自身を含む): 41416200

約数和(自身を除く): 20484410

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 17299, 34598, 86495, 172990, 190289, 380578, 951445, 1902890, 2093179, 4186358, 10465895, 20931790]

約数ペア:

[(1, 20931790), (2, 10465895), (5, 4186358), (10, 2093179), (11, 1902890), (22, 951445), (55, 380578), (110, 190289), (121, 172990), (242, 86495), (605, 34598), (1210, 17299)]