21805011

素因数分解:

$3^3\times {\mathrm{127}}^1\times {\mathrm{6359}}^1$

素因数の和:6495

約数の個数: 16

約数和(自身を含む): 32563200

約数和(自身を除く): 10758189

約数列:

[1, 3, 9, 27, 127, 381, 1143, 3429, 6359, 19077, 57231, 171693, 807593, 2422779, 7268337, 21805011]

約数ペア:

[(1, 21805011), (3, 7268337), (9, 2422779), (27, 807593), (127, 171693), (381, 57231), (1143, 19077), (3429, 6359)]