21057118

素因数分解:

$2^1\times {\mathrm{17}}^3\times {\mathrm{2143}}^1$

素因数の和:2196

約数の個数: 16

約数和(自身を含む): 33575040

約数和(自身を除く): 12517922

約数列:

[1, 2, 17, 34, 289, 578, 2143, 4286, 4913, 9826, 36431, 72862, 619327, 1238654, 10528559, 21057118]

約数ペア:

[(1, 21057118), (2, 10528559), (17, 1238654), (34, 619327), (289, 72862), (578, 36431), (2143, 9826), (4286, 4913)]