28666905

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{337}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 47309184

約数和(自身を除く): 18642279

約数列:

[1, 3, 5, 15, 53, 107, 159, 265, 321, 337, 535, 795, 1011, 1605, 1685, 5055, 5671, 17013, 17861, 28355, 36059, 53583, 85065, 89305, 108177, 180295, 267915, 540885, 1911127, 5733381, 9555635, 28666905]

約数ペア:

[(1, 28666905), (3, 9555635), (5, 5733381), (15, 1911127), (53, 540885), (107, 267915), (159, 180295), (265, 108177), (321, 89305), (337, 85065), (535, 53583), (795, 36059), (1011, 28355), (1605, 17861), (1685, 17013), (5055, 5671)]