21178004

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{2311}}^1$

素因数の和:2423

約数の個数: 24

約数和(自身を含む): 38841600

約数和(自身を除く): 17663596

約数列:

[1, 2, 4, 29, 58, 79, 116, 158, 316, 2291, 2311, 4582, 4622, 9164, 9244, 67019, 134038, 182569, 268076, 365138, 730276, 5294501, 10589002, 21178004]

約数ペア:

[(1, 21178004), (2, 10589002), (4, 5294501), (29, 730276), (58, 365138), (79, 268076), (116, 182569), (158, 134038), (316, 67019), (2291, 9244), (2311, 9164), (4582, 4622)]