18947979

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{41281}}^1$

素因数の和:41307

約数の個数: 16

約数和(自身を含む): 29723040

約数和(自身を除く): 10775061

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 41281, 123843, 371529, 701777, 1114587, 2105331, 6315993, 18947979]

約数ペア:

[(1, 18947979), (3, 6315993), (9, 2105331), (17, 1114587), (27, 701777), (51, 371529), (153, 123843), (459, 41281)]