19917933

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{10657}}^1$

素因数の和:10756

約数の個数: 16

約数和(自身を含む): 30695040

約数和(自身を除く): 10777107

約数列:

[1, 3, 7, 21, 89, 267, 623, 1869, 10657, 31971, 74599, 223797, 948473, 2845419, 6639311, 19917933]

約数ペア:

[(1, 19917933), (3, 6639311), (7, 2845419), (21, 948473), (89, 223797), (267, 74599), (623, 31971), (1869, 10657)]