21875156

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{15149}}^1$

素因数の和:15191

約数の個数: 18

約数和(自身を含む): 40405050

約数和(自身を除く): 18529894

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 15149, 30298, 60596, 287831, 575662, 1151324, 5468789, 10937578, 21875156]

約数ペア:

[(1, 21875156), (2, 10937578), (4, 5468789), (19, 1151324), (38, 575662), (76, 287831), (361, 60596), (722, 30298), (1444, 15149)]