21012017

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{3067}}^1$

素因数の和:3128

約数の個数: 16

約数和(自身を含む): 24740352

約数和(自身を除く): 3728335

約数列:

[1, 13, 17, 31, 221, 403, 527, 3067, 6851, 39871, 52139, 95077, 677807, 1236001, 1616309, 21012017]

約数ペア:

[(1, 21012017), (13, 1616309), (17, 1236001), (31, 677807), (221, 95077), (403, 52139), (527, 39871), (3067, 6851)]