212513139

素因数分解:

$3^4\times {\mathrm{577}}^1\times {\mathrm{4547}}^1$

素因数の和:5136

約数の個数: 20

約数和(自身を含む): 318078024

約数和(自身を除く): 105564885

約数列:

[1, 3, 9, 27, 81, 577, 1731, 4547, 5193, 13641, 15579, 40923, 46737, 122769, 368307, 2623619, 7870857, 23612571, 70837713, 212513139]

約数ペア:

[(1, 212513139), (3, 70837713), (9, 23612571), (27, 7870857), (81, 2623619), (577, 368307), (1731, 122769), (4547, 46737), (5193, 40923), (13641, 15579)]