21830265

素因数分解:

$3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3541}}^1$

素因数の和:3689

約数の個数: 24

約数和(自身を含む): 38126088

約数和(自身を除く): 16295823

約数列:

[1, 3, 5, 9, 15, 45, 137, 411, 685, 1233, 2055, 3541, 6165, 10623, 17705, 31869, 53115, 159345, 485117, 1455351, 2425585, 4366053, 7276755, 21830265]

約数ペア:

[(1, 21830265), (3, 7276755), (5, 4366053), (9, 2425585), (15, 1455351), (45, 485117), (137, 159345), (411, 53115), (685, 31869), (1233, 17705), (2055, 10623), (3541, 6165)]