28991385

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{9337}}^1$

素因数の和:9374

約数の個数: 32

約数和(自身を含む): 53786880

約数和(自身を除く): 24795495

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 207, 345, 621, 1035, 3105, 9337, 28011, 46685, 84033, 140055, 214751, 252099, 420165, 644253, 1073755, 1260495, 1932759, 3221265, 5798277, 9663795, 28991385]

約数ペア:

[(1, 28991385), (3, 9663795), (5, 5798277), (9, 3221265), (15, 1932759), (23, 1260495), (27, 1073755), (45, 644253), (69, 420165), (115, 252099), (135, 214751), (207, 140055), (345, 84033), (621, 46685), (1035, 28011), (3105, 9337)]