21870189

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{73637}}^1$

素因数の和:73657

約数の個数: 16

約数和(自身を含む): 35346240

約数和(自身を除く): 13476051

約数列:

[1, 3, 9, 11, 27, 33, 99, 297, 73637, 220911, 662733, 810007, 1988199, 2430021, 7290063, 21870189]

約数ペア:

[(1, 21870189), (3, 7290063), (9, 2430021), (11, 1988199), (27, 810007), (33, 662733), (99, 220911), (297, 73637)]