20289825

素因数分解:

$3^3\times 5^2\times {\mathrm{30059}}^1$

素因数の和:30078

約数の個数: 24

約数和(自身を含む): 37274400

約数和(自身を除く): 16984575

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 30059, 90177, 150295, 270531, 450885, 751475, 811593, 1352655, 2254425, 4057965, 6763275, 20289825]

約数ペア:

[(1, 20289825), (3, 6763275), (5, 4057965), (9, 2254425), (15, 1352655), (25, 811593), (27, 751475), (45, 450885), (75, 270531), (135, 150295), (225, 90177), (675, 30059)]