19774431

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{181}}^1\times {\mathrm{199}}^1$

素因数の和:447

約数の個数: 24

約数和(自身を含む): 29338400

約数和(自身を除く): 9563969

約数列:

[1, 3, 9, 61, 181, 183, 199, 543, 549, 597, 1629, 1791, 11041, 12139, 33123, 36019, 36417, 99369, 108057, 109251, 324171, 2197159, 6591477, 19774431]

約数ペア:

[(1, 19774431), (3, 6591477), (9, 2197159), (61, 324171), (181, 109251), (183, 108057), (199, 99369), (543, 36417), (549, 36019), (597, 33123), (1629, 12139), (1791, 11041)]