21149426

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{907}}^1$

素因数の和:1129

約数の個数: 16

約数和(自身を含む): 32361120

約数和(自身を除く): 11211694

約数列:

[1, 2, 89, 131, 178, 262, 907, 1814, 11659, 23318, 80723, 118817, 161446, 237634, 10574713, 21149426]

約数ペア:

[(1, 21149426), (2, 10574713), (89, 237634), (131, 161446), (178, 118817), (262, 80723), (907, 23318), (1814, 11659)]