21972555

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{44389}}^1$

素因数の和:44411

約数の個数: 24

約数和(自身を含む): 41549040

約数和(自身を除く): 19576485

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 44389, 133167, 221945, 399501, 488279, 665835, 1464837, 1997505, 2441395, 4394511, 7324185, 21972555]

約数ペア:

[(1, 21972555), (3, 7324185), (5, 4394511), (9, 2441395), (11, 1997505), (15, 1464837), (33, 665835), (45, 488279), (55, 399501), (99, 221945), (165, 133167), (495, 44389)]