18469905

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{72431}}^1$

素因数の和:72456

約数の個数: 16

約数和(自身を含む): 31290624

約数和(自身を除く): 12820719

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 72431, 217293, 362155, 1086465, 1231327, 3693981, 6156635, 18469905]

約数ペア:

[(1, 18469905), (3, 6156635), (5, 3693981), (15, 1231327), (17, 1086465), (51, 362155), (85, 217293), (255, 72431)]