21167797721

素因数分解:

$7^1\times {\mathrm{281}}^1\times {\mathrm{1931}}^1\times {\mathrm{5573}}^1$

素因数の和:7792

約数の個数: 16

約数和(自身を含む): 24294791808

約数和(自身を除く): 3126994087

約数列:

[1, 7, 281, 1931, 1967, 5573, 13517, 39011, 542611, 1566013, 3798277, 10761463, 10962091, 75330241, 3023971103, 21167797721]

約数ペア:

[(1, 21167797721), (7, 3023971103), (281, 75330241), (1931, 10962091), (1967, 10761463), (5573, 3798277), (13517, 1566013), (39011, 542611)]