399536487

素因数分解:

$3^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{41999}}^1$

素因数の和:42163

約数の個数: 24

約数和(自身を含む): 663936000

約数和(自身を除く): 264399513

約数列:

[1, 3, 7, 9, 21, 63, 151, 453, 1057, 1359, 3171, 9513, 41999, 125997, 293993, 377991, 881979, 2645937, 6341849, 19025547, 44392943, 57076641, 133178829, 399536487]

約数ペア:

[(1, 399536487), (3, 133178829), (7, 57076641), (9, 44392943), (21, 19025547), (63, 6341849), (151, 2645937), (453, 881979), (1057, 377991), (1359, 293993), (3171, 125997), (9513, 41999)]