21113290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17449}}^1$

素因数の和:17478

約数の個数: 24

約数和(自身を含む): 41775300

約数和(自身を除く): 20662010

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 17449, 34898, 87245, 174490, 191939, 383878, 959695, 1919390, 2111329, 4222658, 10556645, 21113290]

約数ペア:

[(1, 21113290), (2, 10556645), (5, 4222658), (10, 2111329), (11, 1919390), (22, 959695), (55, 383878), (110, 191939), (121, 174490), (242, 87245), (605, 34898), (1210, 17449)]