21548120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{48973}}^1$

素因数の和:48995

約数の個数: 32

約数和(自身を含む): 52891920

約数和(自身を除く): 31343800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 48973, 97946, 195892, 244865, 391784, 489730, 538703, 979460, 1077406, 1958920, 2154812, 2693515, 4309624, 5387030, 10774060, 21548120]

約数ペア:

[(1, 21548120), (2, 10774060), (4, 5387030), (5, 4309624), (8, 2693515), (10, 2154812), (11, 1958920), (20, 1077406), (22, 979460), (40, 538703), (44, 489730), (55, 391784), (88, 244865), (110, 195892), (220, 97946), (440, 48973)]