21277882199

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1672921}}^1$

素因数の和:1673030

約数の個数: 16

約数和(自身を含む): 25696081920

約数和(自身を除く): 4418199721

約数列:

[1, 7, 23, 79, 161, 553, 1817, 12719, 1672921, 11710447, 38477183, 132160759, 269340281, 925125313, 3039697457, 21277882199]

約数ペア:

[(1, 21277882199), (7, 3039697457), (23, 925125313), (79, 269340281), (161, 132160759), (553, 38477183), (1817, 11710447), (12719, 1672921)]