21797702

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{881}}^1$

素因数の和:1111

約数の個数: 16

約数和(自身を含む): 33339600

約数和(自身を除く): 11541898

約数列:

[1, 2, 89, 139, 178, 278, 881, 1762, 12371, 24742, 78409, 122459, 156818, 244918, 10898851, 21797702]

約数ペア:

[(1, 21797702), (2, 10898851), (89, 244918), (139, 156818), (178, 122459), (278, 78409), (881, 24742), (1762, 12371)]