78890021

素因数分解:

$7^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{2851}}^1$

素因数の和:2984

約数の個数: 16

約数和(自身を含む): 93089280

約数和(自身を除く): 14199259

約数列:

[1, 7, 59, 67, 413, 469, 2851, 3953, 19957, 27671, 168209, 191017, 1177463, 1337119, 11270003, 78890021]

約数ペア:

[(1, 78890021), (7, 11270003), (59, 1337119), (67, 1177463), (413, 191017), (469, 168209), (2851, 27671), (3953, 19957)]