21667372

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{2081}}^1$

素因数の和:2241

約数の個数: 24

約数和(自身を含む): 40224240

約数和(自身を除く): 18556868

約数列:

[1, 2, 4, 19, 38, 76, 137, 274, 548, 2081, 2603, 4162, 5206, 8324, 10412, 39539, 79078, 158156, 285097, 570194, 1140388, 5416843, 10833686, 21667372]

約数ペア:

[(1, 21667372), (2, 10833686), (4, 5416843), (19, 1140388), (38, 570194), (76, 285097), (137, 158156), (274, 79078), (548, 39539), (2081, 10412), (2603, 8324), (4162, 5206)]