21793640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{49531}}^1$

素因数の和:49553

約数の個数: 32

約数和(自身を含む): 53494560

約数和(自身を除く): 31700920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 49531, 99062, 198124, 247655, 396248, 495310, 544841, 990620, 1089682, 1981240, 2179364, 2724205, 4358728, 5448410, 10896820, 21793640]

約数ペア:

[(1, 21793640), (2, 10896820), (4, 5448410), (5, 4358728), (8, 2724205), (10, 2179364), (11, 1981240), (20, 1089682), (22, 990620), (40, 544841), (44, 495310), (55, 396248), (88, 247655), (110, 198124), (220, 99062), (440, 49531)]