16218985

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{1297}}^1$

素因数の和:1404

約数の個数: 16

約数和(自身を含む): 20279952

約数和(自身を除く): 4060967

約数列:

[1, 5, 41, 61, 205, 305, 1297, 2501, 6485, 12505, 53177, 79117, 265885, 395585, 3243797, 16218985]

約数ペア:

[(1, 16218985), (5, 3243797), (41, 395585), (61, 265885), (205, 79117), (305, 53177), (1297, 12505), (2501, 6485)]