18900423

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{173}}^1\times {\mathrm{199}}^1$

素因数の和:439

約数の個数: 24

約数和(自身を含む): 28048800

約数和(自身を除く): 9148377

約数列:

[1, 3, 9, 61, 173, 183, 199, 519, 549, 597, 1557, 1791, 10553, 12139, 31659, 34427, 36417, 94977, 103281, 109251, 309843, 2100047, 6300141, 18900423]

約数ペア:

[(1, 18900423), (3, 6300141), (9, 2100047), (61, 309843), (173, 109251), (183, 103281), (199, 94977), (519, 36417), (549, 34427), (597, 31659), (1557, 12139), (1791, 10553)]