21004402

素因数分解:

$2^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1\times {\mathrm{443}}^1$

素因数の和:753

約数の個数: 16

約数和(自身を含む): 31989312

約数和(自身を除く): 10984910

約数列:

[1, 2, 151, 157, 302, 314, 443, 886, 23707, 47414, 66893, 69551, 133786, 139102, 10502201, 21004402]

約数ペア:

[(1, 21004402), (2, 10502201), (151, 139102), (157, 133786), (302, 69551), (314, 66893), (443, 47414), (886, 23707)]