19666305

素因数分解:

$3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4243}}^1$

素因数の和:4357

約数の個数: 24

約数和(自身を含む): 34427328

約数和(自身を除く): 14761023

約数列:

[1, 3, 5, 9, 15, 45, 103, 309, 515, 927, 1545, 4243, 4635, 12729, 21215, 38187, 63645, 190935, 437029, 1311087, 2185145, 3933261, 6555435, 19666305]

約数ペア:

[(1, 19666305), (3, 6555435), (5, 3933261), (9, 2185145), (15, 1311087), (45, 437029), (103, 190935), (309, 63645), (515, 38187), (927, 21215), (1545, 12729), (4243, 4635)]