21248026

素因数分解:

$2^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1\times {\mathrm{271}}^1$

素因数の和:669

約数の個数: 16

約数和(自身を含む): 32313600

約数和(自身を除く): 11065574

約数列:

[1, 2, 197, 199, 271, 394, 398, 542, 39203, 53387, 53929, 78406, 106774, 107858, 10624013, 21248026]

約数ペア:

[(1, 21248026), (2, 10624013), (197, 107858), (199, 106774), (271, 78406), (394, 53929), (398, 53387), (542, 39203)]