18220845

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41887}}^1$

素因数の和:41924

約数の個数: 16

約数和(自身を含む): 30159360

約数和(自身を除く): 11938515

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 41887, 125661, 209435, 628305, 1214723, 3644169, 6073615, 18220845]

約数ペア:

[(1, 18220845), (3, 6073615), (5, 3644169), (15, 1214723), (29, 628305), (87, 209435), (145, 125661), (435, 41887)]