217156919

素因数分解:

$7^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1\times {\mathrm{1783}}^1$

素因数の和:2054

約数の個数: 16

約数和(自身を含む): 252100608

約数和(自身を除く): 34943689

約数列:

[1, 7, 127, 137, 889, 959, 1783, 12481, 17399, 121793, 226441, 244271, 1585087, 1709897, 31022417, 217156919]

約数ペア:

[(1, 217156919), (7, 31022417), (127, 1709897), (137, 1585087), (889, 244271), (959, 226441), (1783, 121793), (12481, 17399)]