20521782

素因数分解:

$2^1\times 3^3\times {\mathrm{419}}^1\times {\mathrm{907}}^1$

素因数の和:1337

約数の個数: 32

約数和(自身を含む): 45763200

約数和(自身を除く): 25241418

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 419, 838, 907, 1257, 1814, 2514, 2721, 3771, 5442, 7542, 8163, 11313, 16326, 22626, 24489, 48978, 380033, 760066, 1140099, 2280198, 3420297, 6840594, 10260891, 20521782]

約数ペア:

[(1, 20521782), (2, 10260891), (3, 6840594), (6, 3420297), (9, 2280198), (18, 1140099), (27, 760066), (54, 380033), (419, 48978), (838, 24489), (907, 22626), (1257, 16326), (1814, 11313), (2514, 8163), (2721, 7542), (3771, 5442)]