19978283

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{613}}^1$

素因数の和:758

約数の個数: 16

約数和(自身を含む): 22693440

約数和(自身を除く): 2715157

約数列:

[1, 13, 23, 109, 299, 613, 1417, 2507, 7969, 14099, 32591, 66817, 183287, 868621, 1536791, 19978283]

約数ペア:

[(1, 19978283), (13, 1536791), (23, 868621), (109, 183287), (299, 66817), (613, 32591), (1417, 14099), (2507, 7969)]