18642215

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{1549}}^1$

素因数の和:1666

約数の個数: 16

約数和(自身を含む): 23436000

約数和(自身を除く): 4793785

約数列:

[1, 5, 29, 83, 145, 415, 1549, 2407, 7745, 12035, 44921, 128567, 224605, 642835, 3728443, 18642215]

約数ペア:

[(1, 18642215), (5, 3728443), (29, 642835), (83, 224605), (145, 128567), (415, 44921), (1549, 12035), (2407, 7745)]