21064545

素因数分解:

$3^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{2803}}^1$

素因数の和:2981

約数の個数: 24

約数和(自身を含む): 36743616

約数和(自身を除く): 15679071

約数列:

[1, 3, 5, 9, 15, 45, 167, 501, 835, 1503, 2505, 2803, 7515, 8409, 14015, 25227, 42045, 126135, 468101, 1404303, 2340505, 4212909, 7021515, 21064545]

約数ペア:

[(1, 21064545), (3, 7021515), (5, 4212909), (9, 2340505), (15, 1404303), (45, 468101), (167, 126135), (501, 42045), (835, 25227), (1503, 14015), (2505, 8409), (2803, 7515)]