18620890

素因数分解:

$2^1\times 5^1\times {\mathrm{991}}^1\times {\mathrm{1879}}^1$

素因数の和:2877

約数の個数: 16

約数和(自身を含む): 33569280

約数和(自身を除く): 14948390

約数列:

[1, 2, 5, 10, 991, 1879, 1982, 3758, 4955, 9395, 9910, 18790, 1862089, 3724178, 9310445, 18620890]

約数ペア:

[(1, 18620890), (2, 9310445), (5, 3724178), (10, 1862089), (991, 18790), (1879, 9910), (1982, 9395), (3758, 4955)]