20126757

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{691}}^1$

素因数の和:793

約数の個数: 32

約数和(自身を含む): 32773120

約数和(自身を除く): 12646363

約数列:

[1, 3, 7, 19, 21, 57, 73, 133, 219, 399, 511, 691, 1387, 1533, 2073, 4161, 4837, 9709, 13129, 14511, 29127, 39387, 50443, 91903, 151329, 275709, 353101, 958417, 1059303, 2875251, 6708919, 20126757]

約数ペア:

[(1, 20126757), (3, 6708919), (7, 2875251), (19, 1059303), (21, 958417), (57, 353101), (73, 275709), (133, 151329), (219, 91903), (399, 50443), (511, 39387), (691, 29127), (1387, 14511), (1533, 13129), (2073, 9709), (4161, 4837)]