18669808

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{68639}}^1$

素因数の和:68664

約数の個数: 20

約数和(自身を含む): 38301120

約数和(自身を除く): 19631312

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 68639, 137278, 274556, 549112, 1098224, 1166863, 2333726, 4667452, 9334904, 18669808]

約数ペア:

[(1, 18669808), (2, 9334904), (4, 4667452), (8, 2333726), (16, 1166863), (17, 1098224), (34, 549112), (68, 274556), (136, 137278), (272, 68639)]