2019920721

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{17167}}^1$

素因数の和:17621

約数の個数: 32

約数和(自身を含む): 3322626048

約数和(自身を除く): 1302705327

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 431, 1293, 3017, 5603, 9051, 16809, 17167, 39221, 51501, 117663, 120169, 223171, 360507, 669513, 1562197, 4686591, 7398977, 22196931, 51792839, 96186701, 155378517, 288560103, 673306907, 2019920721]

約数ペア:

[(1, 2019920721), (3, 673306907), (7, 288560103), (13, 155378517), (21, 96186701), (39, 51792839), (91, 22196931), (273, 7398977), (431, 4686591), (1293, 1562197), (3017, 669513), (5603, 360507), (9051, 223171), (16809, 120169), (17167, 117663), (39221, 51501)]