28761561

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{5821}}^1$

素因数の和:5894

約数の個数: 20

約数和(自身を含む): 43676644

約数和(自身を除く): 14915083

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 4941, 5821, 17463, 52389, 157167, 355081, 471501, 1065243, 3195729, 9587187, 28761561]

約数ペア:

[(1, 28761561), (3, 9587187), (9, 3195729), (27, 1065243), (61, 471501), (81, 355081), (183, 157167), (549, 52389), (1647, 17463), (4941, 5821)]