21489044

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{181}}^1\times {\mathrm{443}}^1$

素因数の和:695

約数の個数: 24

約数和(自身を含む): 38464608

約数和(自身を除く): 16975564

約数列:

[1, 2, 4, 67, 134, 181, 268, 362, 443, 724, 886, 1772, 12127, 24254, 29681, 48508, 59362, 80183, 118724, 160366, 320732, 5372261, 10744522, 21489044]

約数ペア:

[(1, 21489044), (2, 10744522), (4, 5372261), (67, 320732), (134, 160366), (181, 118724), (268, 80183), (362, 59362), (443, 48508), (724, 29681), (886, 24254), (1772, 12127)]