28216215

素因数分解:

$3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{4447}}^1$

素因数の和:4508

約数の個数: 32

約数和(自身を含む): 51240960

約数和(自身を除く): 23024745

約数列:

[1, 3, 5, 9, 15, 27, 45, 47, 135, 141, 235, 423, 705, 1269, 2115, 4447, 6345, 13341, 22235, 40023, 66705, 120069, 200115, 209009, 600345, 627027, 1045045, 1881081, 3135135, 5643243, 9405405, 28216215]

約数ペア:

[(1, 28216215), (3, 9405405), (5, 5643243), (9, 3135135), (15, 1881081), (27, 1045045), (45, 627027), (47, 600345), (135, 209009), (141, 200115), (235, 120069), (423, 66705), (705, 40023), (1269, 22235), (2115, 13341), (4447, 6345)]