18945765

素因数分解:

$3^3\times 5^1\times {\mathrm{140339}}^1$

素因数の和:140353

約数の個数: 16

約数和(自身を含む): 33681600

約数和(自身を除く): 14735835

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 140339, 421017, 701695, 1263051, 2105085, 3789153, 6315255, 18945765]

約数ペア:

[(1, 18945765), (3, 6315255), (5, 3789153), (9, 2105085), (15, 1263051), (27, 701695), (45, 421017), (135, 140339)]