20666079

素因数分解:

$3^2\times 7^1\times {\mathrm{223}}^1\times {\mathrm{1471}}^1$

素因数の和:1707

約数の個数: 24

約数和(自身を含む): 34291712

約数和(自身を除く): 13625633

約数列:

[1, 3, 7, 9, 21, 63, 223, 669, 1471, 1561, 2007, 4413, 4683, 10297, 13239, 14049, 30891, 92673, 328033, 984099, 2296231, 2952297, 6888693, 20666079]

約数ペア:

[(1, 20666079), (3, 6888693), (7, 2952297), (9, 2296231), (21, 984099), (63, 328033), (223, 92673), (669, 30891), (1471, 14049), (1561, 13239), (2007, 10297), (4413, 4683)]