20921849

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{2309}}^1$

素因数の和:2380

約数の個数: 16

約数和(自身を含む): 24449040

約数和(自身を除く): 3527191

約数列:

[1, 13, 17, 41, 221, 533, 697, 2309, 9061, 30017, 39253, 94669, 510289, 1230697, 1609373, 20921849]

約数ペア:

[(1, 20921849), (13, 1609373), (17, 1230697), (41, 510289), (221, 94669), (533, 39253), (697, 30017), (2309, 9061)]