18965164

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{1009}}^1$

素因数の和:1177

約数の個数: 24

約数和(自身を含む): 34388480

約数和(自身を除く): 15423316

約数列:

[1, 2, 4, 37, 74, 127, 148, 254, 508, 1009, 2018, 4036, 4699, 9398, 18796, 37333, 74666, 128143, 149332, 256286, 512572, 4741291, 9482582, 18965164]

約数ペア:

[(1, 18965164), (2, 9482582), (4, 4741291), (37, 512572), (74, 256286), (127, 149332), (148, 128143), (254, 74666), (508, 37333), (1009, 18796), (2018, 9398), (4036, 4699)]