20618806

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^2\times {\mathrm{359}}^1$

素因数の和:468

約数の個数: 24

約数和(自身を含む): 34125840

約数和(自身を除く): 13507034

約数列:

[1, 2, 13, 26, 47, 94, 359, 611, 718, 1222, 2209, 4418, 4667, 9334, 16873, 28717, 33746, 57434, 219349, 438698, 793031, 1586062, 10309403, 20618806]

約数ペア:

[(1, 20618806), (2, 10309403), (13, 1586062), (26, 793031), (47, 438698), (94, 219349), (359, 57434), (611, 33746), (718, 28717), (1222, 16873), (2209, 9334), (4418, 4667)]