21528705

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{130477}}^1$

素因数の和:130496

約数の個数: 16

約数和(自身を含む): 37577664

約数和(自身を除く): 16048959

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 130477, 391431, 652385, 1435247, 1957155, 4305741, 7176235, 21528705]

約数ペア:

[(1, 21528705), (3, 7176235), (5, 4305741), (11, 1957155), (15, 1435247), (33, 652385), (55, 391431), (165, 130477)]