20820134

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{313}}^1\times {\mathrm{421}}^1$

素因数の和:815

約数の個数: 16

約数和(自身を含む): 31801920

約数和(自身を除く): 10981786

約数列:

[1, 2, 79, 158, 313, 421, 626, 842, 24727, 33259, 49454, 66518, 131773, 263546, 10410067, 20820134]

約数ペア:

[(1, 20820134), (2, 10410067), (79, 263546), (158, 131773), (313, 66518), (421, 49454), (626, 33259), (842, 24727)]