678069

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:289

約数の個数: 24

約数和(自身を含む): 1148160

約数和(自身を除く): 470091

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 229, 329, 423, 687, 987, 1603, 2061, 2961, 4809, 10763, 14427, 32289, 75341, 96867, 226023, 678069]

約数ペア:

[(1, 678069), (3, 226023), (7, 96867), (9, 75341), (21, 32289), (47, 14427), (63, 10763), (141, 4809), (229, 2961), (329, 2061), (423, 1603), (687, 987)]