289349529

素因数分解:

$3^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{72139}}^1$

素因数の和:72340

約数の個数: 16

約数和(自身を含む): 443228160

約数和(自身を除く): 153878631

約数列:

[1, 3, 7, 21, 191, 573, 1337, 4011, 72139, 216417, 504973, 1514919, 13778549, 41335647, 96449843, 289349529]

約数ペア:

[(1, 289349529), (3, 96449843), (7, 41335647), (21, 13778549), (191, 1514919), (573, 504973), (1337, 216417), (4011, 72139)]