21611480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{49117}}^1$

素因数の和:49139

約数の個数: 32

約数和(自身を含む): 53047440

約数和(自身を除く): 31435960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 49117, 98234, 196468, 245585, 392936, 491170, 540287, 982340, 1080574, 1964680, 2161148, 2701435, 4322296, 5402870, 10805740, 21611480]

約数ペア:

[(1, 21611480), (2, 10805740), (4, 5402870), (5, 4322296), (8, 2701435), (10, 2161148), (11, 1964680), (20, 1080574), (22, 982340), (40, 540287), (44, 491170), (55, 392936), (88, 245585), (110, 196468), (220, 98234), (440, 49117)]