18918428

素因数分解:

$2^2\times {\mathrm{127}}^1\times {\mathrm{167}}^1\times {\mathrm{223}}^1$

素因数の和:521

約数の個数: 24

約数和(自身を含む): 33718272

約数和(自身を除く): 14799844

約数列:

[1, 2, 4, 127, 167, 223, 254, 334, 446, 508, 668, 892, 21209, 28321, 37241, 42418, 56642, 74482, 84836, 113284, 148964, 4729607, 9459214, 18918428]

約数ペア:

[(1, 18918428), (2, 9459214), (4, 4729607), (127, 148964), (167, 113284), (223, 84836), (254, 74482), (334, 56642), (446, 42418), (508, 37241), (668, 28321), (892, 21209)]