31686538

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{4217}}^1$

素因数の和:4266

約数の個数: 24

約数和(自身を含む): 54386892

約数和(自身を除く): 22700354

約数列:

[1, 2, 13, 17, 26, 34, 221, 289, 442, 578, 3757, 4217, 7514, 8434, 54821, 71689, 109642, 143378, 931957, 1218713, 1863914, 2437426, 15843269, 31686538]

約数ペア:

[(1, 31686538), (2, 15843269), (13, 2437426), (17, 1863914), (26, 1218713), (34, 931957), (221, 143378), (289, 109642), (442, 71689), (578, 54821), (3757, 8434), (4217, 7514)]