20831004

素因数分解:

$2^2\times 3^2\times {\mathrm{419}}^1\times {\mathrm{1381}}^1$

素因数の和:1810

約数の個数: 36

約数和(自身を含む): 52820040

約数和(自身を除く): 31989036

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 419, 838, 1257, 1381, 1676, 2514, 2762, 3771, 4143, 5028, 5524, 7542, 8286, 12429, 15084, 16572, 24858, 49716, 578639, 1157278, 1735917, 2314556, 3471834, 5207751, 6943668, 10415502, 20831004]

約数ペア:

[(1, 20831004), (2, 10415502), (3, 6943668), (4, 5207751), (6, 3471834), (9, 2314556), (12, 1735917), (18, 1157278), (36, 578639), (419, 49716), (838, 24858), (1257, 16572), (1381, 15084), (1676, 12429), (2514, 8286), (2762, 7542), (3771, 5524), (4143, 5028)]