18619471

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{487}}^1$

素因数の和:690

約数の個数: 16

約数和(自身を含む): 21397824

約数和(自身を除く): 2778353

約数列:

[1, 13, 17, 173, 221, 487, 2249, 2941, 6331, 8279, 38233, 84251, 107627, 1095263, 1432267, 18619471]

約数ペア:

[(1, 18619471), (13, 1432267), (17, 1095263), (173, 107627), (221, 84251), (487, 38233), (2249, 8279), (2941, 6331)]