389709

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:121

約数の個数: 24

約数和(自身を含む): 617760

約数和(自身を除く): 228051

約数列:

[1, 3, 9, 19, 43, 53, 57, 129, 159, 171, 387, 477, 817, 1007, 2279, 2451, 3021, 6837, 7353, 9063, 20511, 43301, 129903, 389709]

約数ペア:

[(1, 389709), (3, 129903), (9, 43301), (19, 20511), (43, 9063), (53, 7353), (57, 6837), (129, 3021), (159, 2451), (171, 2279), (387, 1007), (477, 817)]