20449886

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{877}}^1$

素因数の和:1099

約数の個数: 16

約数和(自身を含む): 31291920

約数和(自身を除く): 10842034

約数列:

[1, 2, 89, 131, 178, 262, 877, 1754, 11659, 23318, 78053, 114887, 156106, 229774, 10224943, 20449886]

約数ペア:

[(1, 20449886), (2, 10224943), (89, 229774), (131, 156106), (178, 114887), (262, 78053), (877, 23318), (1754, 11659)]