21103033

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{1231}}^1$

素因数の和:1348

約数の個数: 16

約数和(自身を含む): 25231360

約数和(自身を除く): 4128327

約数列:

[1, 7, 31, 79, 217, 553, 1231, 2449, 8617, 17143, 38161, 97249, 267127, 680743, 3014719, 21103033]

約数ペア:

[(1, 21103033), (7, 3014719), (31, 680743), (79, 267127), (217, 97249), (553, 38161), (1231, 17143), (2449, 8617)]