399381

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:252

約数の個数: 16

約数和(自身を含む): 580608

約数和(自身を除く): 181227

約数列:

[1, 3, 17, 41, 51, 123, 191, 573, 697, 2091, 3247, 7831, 9741, 23493, 133127, 399381]

約数ペア:

[(1, 399381), (3, 133127), (17, 23493), (41, 9741), (51, 7831), (123, 3247), (191, 2091), (573, 697)]