20619783

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{397}}^1$

素因数の和:631

約数の個数: 24

約数和(自身を含む): 31044000

約数和(自身を除く): 10424217

約数列:

[1, 3, 9, 29, 87, 199, 261, 397, 597, 1191, 1791, 3573, 5771, 11513, 17313, 34539, 51939, 79003, 103617, 237009, 711027, 2291087, 6873261, 20619783]

約数ペア:

[(1, 20619783), (3, 6873261), (9, 2291087), (29, 711027), (87, 237009), (199, 103617), (261, 79003), (397, 51939), (597, 34539), (1191, 17313), (1791, 11513), (3573, 5771)]