21030195

素因数分解:

$3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{17747}}^1$

素因数の和:17834

約数の個数: 16

約数和(自身を含む): 34076160

約数和(自身を除く): 13045965

約数列:

[1, 3, 5, 15, 79, 237, 395, 1185, 17747, 53241, 88735, 266205, 1402013, 4206039, 7010065, 21030195]

約数ペア:

[(1, 21030195), (3, 7010065), (5, 4206039), (15, 1402013), (79, 266205), (237, 88735), (395, 53241), (1185, 17747)]