21542751

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2377}}^1$

素因数の和:2455

約数の個数: 24

約数和(自身を含む): 33387120

約数和(自身を除く): 11844369

約数列:

[1, 3, 9, 19, 53, 57, 159, 171, 477, 1007, 2377, 3021, 7131, 9063, 21393, 45163, 125981, 135489, 377943, 406467, 1133829, 2393639, 7180917, 21542751]

約数ペア:

[(1, 21542751), (3, 7180917), (9, 2393639), (19, 1133829), (53, 406467), (57, 377943), (159, 135489), (171, 125981), (477, 45163), (1007, 21393), (2377, 9063), (3021, 7131)]