21850180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{9029}}^1$

素因数の和:9060

約数の個数: 36

約数和(自身を含む): 50441580

約数和(自身を除く): 28591400

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 9029, 18058, 36116, 45145, 90290, 99319, 180580, 198638, 397276, 496595, 993190, 1092509, 1986380, 2185018, 4370036, 5462545, 10925090, 21850180]

約数ペア:

[(1, 21850180), (2, 10925090), (4, 5462545), (5, 4370036), (10, 2185018), (11, 1986380), (20, 1092509), (22, 993190), (44, 496595), (55, 397276), (110, 198638), (121, 180580), (220, 99319), (242, 90290), (484, 45145), (605, 36116), (1210, 18058), (2420, 9029)]