20897060

素因数分解:

$2^2\times 5^1\times {\mathrm{761}}^1\times {\mathrm{1373}}^1$

素因数の和:2143

約数の個数: 24

約数和(自身を含む): 43973496

約数和(自身を除く): 23076436

約数列:

[1, 2, 4, 5, 10, 20, 761, 1373, 1522, 2746, 3044, 3805, 5492, 6865, 7610, 13730, 15220, 27460, 1044853, 2089706, 4179412, 5224265, 10448530, 20897060]

約数ペア:

[(1, 20897060), (2, 10448530), (4, 5224265), (5, 4179412), (10, 2089706), (20, 1044853), (761, 27460), (1373, 15220), (1522, 13730), (2746, 7610), (3044, 6865), (3805, 5492)]