21538404

素因数分解:

$2^2\times 3^2\times {\mathrm{197}}^1\times {\mathrm{3037}}^1$

素因数の和:3244

約数の個数: 36

約数和(自身を含む): 54738684

約数和(自身を除く): 33200280

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 197, 394, 591, 788, 1182, 1773, 2364, 3037, 3546, 6074, 7092, 9111, 12148, 18222, 27333, 36444, 54666, 109332, 598289, 1196578, 1794867, 2393156, 3589734, 5384601, 7179468, 10769202, 21538404]

約数ペア:

[(1, 21538404), (2, 10769202), (3, 7179468), (4, 5384601), (6, 3589734), (9, 2393156), (12, 1794867), (18, 1196578), (36, 598289), (197, 109332), (394, 54666), (591, 36444), (788, 27333), (1182, 18222), (1773, 12148), (2364, 9111), (3037, 7092), (3546, 6074)]