21538718

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{5927}}^1$

素因数の和:6031

約数の個数: 16

約数和(自身を含む): 34145280

約数和(自身を除く): 12606562

約数列:

[1, 2, 23, 46, 79, 158, 1817, 3634, 5927, 11854, 136321, 272642, 468233, 936466, 10769359, 21538718]

約数ペア:

[(1, 21538718), (2, 10769359), (23, 936466), (46, 468233), (79, 272642), (158, 136321), (1817, 11854), (3634, 5927)]