20285121

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{2347}}^1$

素因数の和:2460

約数の個数: 16

約数和(自身を含む): 28100864

約数和(自身を除く): 7815743

約数列:

[1, 3, 43, 67, 129, 201, 2347, 2881, 7041, 8643, 100921, 157249, 302763, 471747, 6761707, 20285121]

約数ペア:

[(1, 20285121), (3, 6761707), (43, 471747), (67, 302763), (129, 157249), (201, 100921), (2347, 8643), (2881, 7041)]