21613876

素因数分解:

$2^2\times {\mathrm{127}}^1\times {\mathrm{157}}^1\times {\mathrm{271}}^1$

素因数の和:559

約数の個数: 24

約数和(自身を含む): 38506496

約数和(自身を除く): 16892620

約数列:

[1, 2, 4, 127, 157, 254, 271, 314, 508, 542, 628, 1084, 19939, 34417, 39878, 42547, 68834, 79756, 85094, 137668, 170188, 5403469, 10806938, 21613876]

約数ペア:

[(1, 21613876), (2, 10806938), (4, 5403469), (127, 170188), (157, 137668), (254, 85094), (271, 79756), (314, 68834), (508, 42547), (542, 39878), (628, 34417), (1084, 19939)]