18691228

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{274871}}^1$

素因数の和:274892

約数の個数: 12

約数和(自身を含む): 34633872

約数和(自身を除く): 15942644

約数列:

[1, 2, 4, 17, 34, 68, 274871, 549742, 1099484, 4672807, 9345614, 18691228]

約数ペア:

[(1, 18691228), (2, 9345614), (4, 4672807), (17, 1099484), (34, 549742), (68, 274871)]