21671065

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{3301}}^1$

素因数の和:3420

約数の個数: 16

約数和(自身を含む): 28291536

約数和(自身を除く): 6620471

約数列:

[1, 5, 13, 65, 101, 505, 1313, 3301, 6565, 16505, 42913, 214565, 333401, 1667005, 4334213, 21671065]

約数ペア:

[(1, 21671065), (5, 4334213), (13, 1667005), (65, 333401), (101, 214565), (505, 42913), (1313, 16505), (3301, 6565)]