201931509

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{398287}}^1$

素因数の和:398316

約数の個数: 12

約数和(自身を含む): 291546816

約数和(自身を除く): 89615307

約数列:

[1, 3, 13, 39, 169, 507, 398287, 1194861, 5177731, 15533193, 67310503, 201931509]

約数ペア:

[(1, 201931509), (3, 67310503), (13, 15533193), (39, 5177731), (169, 1194861), (507, 398287)]