21119483

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{1747}}^1$

素因数の和:1922

約数の個数: 16

約数和(自身を含む): 26513664

約数和(自身を除く): 5394181

約数列:

[1, 7, 11, 77, 157, 1099, 1727, 1747, 12089, 12229, 19217, 134519, 274279, 1919953, 3017069, 21119483]

約数ペア:

[(1, 21119483), (7, 3017069), (11, 1919953), (77, 274279), (157, 134519), (1099, 19217), (1727, 12229), (1747, 12089)]