19671255

素因数分解:

$3^4\times 5^1\times {\mathrm{48571}}^1$

素因数の和:48588

約数の個数: 20

約数和(自身を含む): 35263272

約数和(自身を除く): 15592017

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 48571, 145713, 242855, 437139, 728565, 1311417, 2185695, 3934251, 6557085, 19671255]

約数ペア:

[(1, 19671255), (3, 6557085), (5, 3934251), (9, 2185695), (15, 1311417), (27, 728565), (45, 437139), (81, 242855), (135, 145713), (405, 48571)]