217539497

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{79481}}^1$

素因数の和:79528

約数の個数: 16

約数和(自身を含む): 274689792

約数和(自身を除く): 57150295

約数列:

[1, 7, 17, 23, 119, 161, 391, 2737, 79481, 556367, 1351177, 1828063, 9458239, 12796441, 31077071, 217539497]

約数ペア:

[(1, 217539497), (7, 31077071), (17, 12796441), (23, 9458239), (119, 1828063), (161, 1351177), (391, 556367), (2737, 79481)]