20210827

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{5417}}^1$

素因数の和:5478

約数の個数: 16

約数和(自身を含む): 25486272

約数和(自身を除く): 5275445

約数列:

[1, 7, 13, 41, 91, 287, 533, 3731, 5417, 37919, 70421, 222097, 492947, 1554679, 2887261, 20210827]

約数ペア:

[(1, 20210827), (7, 2887261), (13, 1554679), (41, 492947), (91, 222097), (287, 70421), (533, 37919), (3731, 5417)]