21885620

素因数分解:

$2^2\times 5^1\times {\mathrm{797}}^1\times {\mathrm{1373}}^1$

素因数の和:2179

約数の個数: 24

約数和(自身を含む): 46050984

約数和(自身を除く): 24165364

約数列:

[1, 2, 4, 5, 10, 20, 797, 1373, 1594, 2746, 3188, 3985, 5492, 6865, 7970, 13730, 15940, 27460, 1094281, 2188562, 4377124, 5471405, 10942810, 21885620]

約数ペア:

[(1, 21885620), (2, 10942810), (4, 5471405), (5, 4377124), (10, 2188562), (20, 1094281), (797, 27460), (1373, 15940), (1594, 13730), (2746, 7970), (3188, 6865), (3985, 5492)]