397331487

素因数分解:

$3^5\times 7^1\times {\mathrm{109}}^1\times {\mathrm{2143}}^1$

素因数の和:2274

約数の個数: 48

約数和(自身を含む): 686766080

約数和(自身を除く): 289434593

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 109, 189, 243, 327, 567, 763, 981, 1701, 2143, 2289, 2943, 6429, 6867, 8829, 15001, 19287, 20601, 26487, 45003, 57861, 61803, 135009, 173583, 185409, 233587, 405027, 520749, 700761, 1215081, 1635109, 2102283, 3645243, 4905327, 6306849, 14715981, 18920547, 44147943, 56761641, 132443829, 397331487]

約数ペア:

[(1, 397331487), (3, 132443829), (7, 56761641), (9, 44147943), (21, 18920547), (27, 14715981), (63, 6306849), (81, 4905327), (109, 3645243), (189, 2102283), (243, 1635109), (327, 1215081), (567, 700761), (763, 520749), (981, 405027), (1701, 233587), (2143, 185409), (2289, 173583), (2943, 135009), (6429, 61803), (6867, 57861), (8829, 45003), (15001, 26487), (19287, 20601)]