18831085

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41387}}^1$

素因数の和:41412

約数の個数: 16

約数和(自身を含む): 27812736

約数和(自身を除く): 8981651

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 41387, 206935, 289709, 538031, 1448545, 2690155, 3766217, 18831085]

約数ペア:

[(1, 18831085), (5, 3766217), (7, 2690155), (13, 1448545), (35, 538031), (65, 289709), (91, 206935), (455, 41387)]