66549987

素因数分解:

$3^2\times 7^2\times {\mathrm{150907}}^1$

素因数の和:150927

約数の個数: 18

約数和(自身を含む): 111822828

約数和(自身を除く): 45272841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 150907, 452721, 1056349, 1358163, 3169047, 7394443, 9507141, 22183329, 66549987]

約数ペア:

[(1, 66549987), (3, 22183329), (7, 9507141), (9, 7394443), (21, 3169047), (49, 1358163), (63, 1056349), (147, 452721), (441, 150907)]