20155521

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{4951}}^1$

素因数の和:5036

約数の個数: 16

約数和(自身を含む): 28523520

約数和(自身を除く): 8367999

約数列:

[1, 3, 23, 59, 69, 177, 1357, 4071, 4951, 14853, 113873, 292109, 341619, 876327, 6718507, 20155521]

約数ペア:

[(1, 20155521), (3, 6718507), (23, 876327), (59, 341619), (69, 292109), (177, 113873), (1357, 14853), (4071, 4951)]