21801609

素因数分解:

$3^3\times {\mathrm{251}}^1\times {\mathrm{3217}}^1$

素因数の和:3477

約数の個数: 16

約数和(自身を含む): 32437440

約数和(自身を除く): 10635831

約数列:

[1, 3, 9, 27, 251, 753, 2259, 3217, 6777, 9651, 28953, 86859, 807467, 2422401, 7267203, 21801609]

約数ペア:

[(1, 21801609), (3, 7267203), (9, 2422401), (27, 807467), (251, 86859), (753, 28953), (2259, 9651), (3217, 6777)]