21645065

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{3433}}^1$

素因数の和:3548

約数の個数: 16

約数和(自身を含む): 28268688

約数和(自身を除く): 6623623

約数列:

[1, 5, 13, 65, 97, 485, 1261, 3433, 6305, 17165, 44629, 223145, 333001, 1665005, 4329013, 21645065]

約数ペア:

[(1, 21645065), (5, 4329013), (13, 1665005), (65, 333001), (97, 223145), (485, 44629), (1261, 17165), (3433, 6305)]