209970279

素因数分解:

$3^3\times {\mathrm{373}}^1\times {\mathrm{20849}}^1$

素因数の和:21231

約数の個数: 16

約数和(自身を含む): 311916000

約数和(自身を除く): 101945721

約数列:

[1, 3, 9, 27, 373, 1119, 3357, 10071, 20849, 62547, 187641, 562923, 7776677, 23330031, 69990093, 209970279]

約数ペア:

[(1, 209970279), (3, 69990093), (9, 23330031), (27, 7776677), (373, 562923), (1119, 187641), (3357, 62547), (10071, 20849)]