209921327

素因数分解:

$7^1\times {\mathrm{11}}^3\times {\mathrm{22531}}^1$

素因数の和:22571

約数の個数: 16

約数和(自身を含む): 263894784

約数和(自身を除く): 53973457

約数列:

[1, 7, 11, 77, 121, 847, 1331, 9317, 22531, 157717, 247841, 1734887, 2726251, 19083757, 29988761, 209921327]

約数ペア:

[(1, 209921327), (7, 29988761), (11, 19083757), (77, 2726251), (121, 1734887), (847, 247841), (1331, 157717), (9317, 22531)]