221752161

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{63667}}^1$

素因数の和:63722

約数の個数: 20

約数和(自身を含む): 338968432

約数和(自身を除く): 117216271

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 63667, 191001, 573003, 1719009, 2737681, 5157027, 8213043, 24639129, 73917387, 221752161]

約数ペア:

[(1, 221752161), (3, 73917387), (9, 24639129), (27, 8213043), (43, 5157027), (81, 2737681), (129, 1719009), (387, 573003), (1161, 191001), (3483, 63667)]