18480015

素因数分解:

$3^3\times 5^1\times {\mathrm{136889}}^1$

素因数の和:136903

約数の個数: 16

約数和(自身を含む): 32853600

約数和(自身を除く): 14373585

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 136889, 410667, 684445, 1232001, 2053335, 3696003, 6160005, 18480015]

約数ペア:

[(1, 18480015), (3, 6160005), (5, 3696003), (9, 2053335), (15, 1232001), (27, 684445), (45, 410667), (135, 136889)]