216143721

素因数分解:

$3^4\times {\mathrm{149}}^1\times {\mathrm{17909}}^1$

素因数の和:18070

約数の個数: 20

約数和(自身を含む): 325066500

約数和(自身を除く): 108922779

約数列:

[1, 3, 9, 27, 81, 149, 447, 1341, 4023, 12069, 17909, 53727, 161181, 483543, 1450629, 2668441, 8005323, 24015969, 72047907, 216143721]

約数ペア:

[(1, 216143721), (3, 72047907), (9, 24015969), (27, 8005323), (81, 2668441), (149, 1450629), (447, 483543), (1341, 161181), (4023, 53727), (12069, 17909)]