19972436

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{2281}}^1$

素因数の和:2495

約数の個数: 24

約数和(自身を含む): 38337600

約数和(自身を除く): 18365164

約数列:

[1, 2, 4, 11, 22, 44, 199, 398, 796, 2189, 2281, 4378, 4562, 8756, 9124, 25091, 50182, 100364, 453919, 907838, 1815676, 4993109, 9986218, 19972436]

約数ペア:

[(1, 19972436), (2, 9986218), (4, 4993109), (11, 1815676), (22, 907838), (44, 453919), (199, 100364), (398, 50182), (796, 25091), (2189, 9124), (2281, 8756), (4378, 4562)]