399006

素因数分解:

$2^1\times 3^5\times {\mathrm{821}}^1$

素因数の和:838

約数の個数: 24

約数和(自身を含む): 897624

約数和(自身を除く): 498618

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 486, 821, 1642, 2463, 4926, 7389, 14778, 22167, 44334, 66501, 133002, 199503, 399006]

約数ペア:

[(1, 399006), (2, 199503), (3, 133002), (6, 66501), (9, 44334), (18, 22167), (27, 14778), (54, 7389), (81, 4926), (162, 2463), (243, 1642), (486, 821)]