221427790

素因数分解:

$2^1\times 5^1\times {\mathrm{709}}^1\times {\mathrm{31231}}^1$

素因数の和:31947

約数の個数: 16

約数和(自身を含む): 399144960

約数和(自身を除く): 177717170

約数列:

[1, 2, 5, 10, 709, 1418, 3545, 7090, 31231, 62462, 156155, 312310, 22142779, 44285558, 110713895, 221427790]

約数ペア:

[(1, 221427790), (2, 110713895), (5, 44285558), (10, 22142779), (709, 312310), (1418, 156155), (3545, 62462), (7090, 31231)]