20664135

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{14813}}^1$

素因数の和:14855

約数の個数: 24

約数和(自身を含む): 36975744

約数和(自身を除く): 16311609

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 14813, 44439, 74065, 133317, 222195, 459203, 666585, 1377609, 2296015, 4132827, 6888045, 20664135]

約数ペア:

[(1, 20664135), (3, 6888045), (5, 4132827), (9, 2296015), (15, 1377609), (31, 666585), (45, 459203), (93, 222195), (155, 133317), (279, 74065), (465, 44439), (1395, 14813)]