18987955

素因数分解:

$5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{4801}}^1$

素因数の和:4926

約数の個数: 16

約数和(自身を含む): 26276544

約数和(自身を除く): 7288589

約数列:

[1, 5, 7, 35, 113, 565, 791, 3955, 4801, 24005, 33607, 168035, 542513, 2712565, 3797591, 18987955]

約数ペア:

[(1, 18987955), (5, 3797591), (7, 2712565), (35, 542513), (113, 168035), (565, 33607), (791, 24005), (3955, 4801)]