21965175

素因数分解:

$3^4\times 5^2\times {\mathrm{10847}}^1$

素因数の和:10869

約数の個数: 30

約数和(自身を含む): 40690848

約数和(自身を除く): 18725673

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 10847, 32541, 54235, 97623, 162705, 271175, 292869, 488115, 813525, 878607, 1464345, 2440575, 4393035, 7321725, 21965175]

約数ペア:

[(1, 21965175), (3, 7321725), (5, 4393035), (9, 2440575), (15, 1464345), (25, 878607), (27, 813525), (45, 488115), (75, 292869), (81, 271175), (135, 162705), (225, 97623), (405, 54235), (675, 32541), (2025, 10847)]