20401612

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{66239}}^1$

素因数の和:66261

約数の個数: 24

約数和(自身を含む): 44513280

約数和(自身を除く): 24111668

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 66239, 132478, 264956, 463673, 728629, 927346, 1457258, 1854692, 2914516, 5100403, 10200806, 20401612]

約数ペア:

[(1, 20401612), (2, 10200806), (4, 5100403), (7, 2914516), (11, 1854692), (14, 1457258), (22, 927346), (28, 728629), (44, 463673), (77, 264956), (154, 132478), (308, 66239)]