21161414

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{1999}}^1$

素因数の和:2147

約数の個数: 16

約数和(自身を含む): 32640000

約数和(自身を除く): 11478586

約数列:

[1, 2, 67, 79, 134, 158, 1999, 3998, 5293, 10586, 133933, 157921, 267866, 315842, 10580707, 21161414]

約数ペア:

[(1, 21161414), (2, 10580707), (67, 315842), (79, 267866), (134, 157921), (158, 133933), (1999, 10586), (3998, 5293)]