20966804

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{2531}}^1$

素因数の和:2663

約数の個数: 24

約数和(自身を含む): 38992800

約数和(自身を除く): 18025996

約数列:

[1, 2, 4, 19, 38, 76, 109, 218, 436, 2071, 2531, 4142, 5062, 8284, 10124, 48089, 96178, 192356, 275879, 551758, 1103516, 5241701, 10483402, 20966804]

約数ペア:

[(1, 20966804), (2, 10483402), (4, 5241701), (19, 1103516), (38, 551758), (76, 275879), (109, 192356), (218, 96178), (436, 48089), (2071, 10124), (2531, 8284), (4142, 5062)]