21308354

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{859}}^1$

素因数の和:1097

約数の個数: 16

約数和(自身を含む): 32611200

約数和(自身を除く): 11302846

約数列:

[1, 2, 79, 157, 158, 314, 859, 1718, 12403, 24806, 67861, 134863, 135722, 269726, 10654177, 21308354]

約数ペア:

[(1, 21308354), (2, 10654177), (79, 269726), (157, 135722), (158, 134863), (314, 67861), (859, 24806), (1718, 12403)]