21968145

素因数分解:

$3^3\times 5^1\times {\mathrm{162727}}^1$

素因数の和:162741

約数の個数: 16

約数和(自身を含む): 39054720

約数和(自身を除く): 17086575

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 162727, 488181, 813635, 1464543, 2440905, 4393629, 7322715, 21968145]

約数ペア:

[(1, 21968145), (3, 7322715), (5, 4393629), (9, 2440905), (15, 1464543), (27, 813635), (45, 488181), (135, 162727)]