21607209

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{61559}}^1$

素因数の和:61581

約数の個数: 16

約数和(自身を含む): 34473600

約数和(自身を除く): 12866391

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 61559, 184677, 554031, 800267, 1662093, 2400801, 7202403, 21607209]

約数ペア:

[(1, 21607209), (3, 7202403), (9, 2400801), (13, 1662093), (27, 800267), (39, 554031), (117, 184677), (351, 61559)]