21029323

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2897}}^1$

素因数の和:2982

約数の個数: 16

約数和(自身を含む): 25873344

約数和(自身を除く): 4844021

約数列:

[1, 7, 17, 61, 119, 427, 1037, 2897, 7259, 20279, 49249, 176717, 344743, 1237019, 3004189, 21029323]

約数ペア:

[(1, 21029323), (7, 3004189), (17, 1237019), (61, 344743), (119, 176717), (427, 49249), (1037, 20279), (2897, 7259)]