20563971

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{229}}^1\times {\mathrm{809}}^1$

素因数の和:1078

約数の個数: 16

約数和(自身を含む): 28317600

約数和(自身を除く): 7753629

約数列:

[1, 3, 37, 111, 229, 687, 809, 2427, 8473, 25419, 29933, 89799, 185261, 555783, 6854657, 20563971]

約数ペア:

[(1, 20563971), (3, 6854657), (37, 555783), (111, 185261), (229, 89799), (687, 29933), (809, 25419), (2427, 8473)]