21885028

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{103}}^1\times {\mathrm{439}}^1$

素因数の和:568

約数の個数: 36

約数和(自身を含む): 42602560

約数和(自身を除く): 20717532

約数列:

[1, 2, 4, 11, 22, 44, 103, 121, 206, 242, 412, 439, 484, 878, 1133, 1756, 2266, 4532, 4829, 9658, 12463, 19316, 24926, 45217, 49852, 53119, 90434, 106238, 180868, 212476, 497387, 994774, 1989548, 5471257, 10942514, 21885028]

約数ペア:

[(1, 21885028), (2, 10942514), (4, 5471257), (11, 1989548), (22, 994774), (44, 497387), (103, 212476), (121, 180868), (206, 106238), (242, 90434), (412, 53119), (439, 49852), (484, 45217), (878, 24926), (1133, 19316), (1756, 12463), (2266, 9658), (4532, 4829)]