78158913

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{195887}}^1$

素因数の和:195916

約数の個数: 16

約数和(自身を含む): 125368320

約数和(自身を除く): 47209407

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 195887, 587661, 1371209, 3721853, 4113627, 11165559, 26052971, 78158913]

約数ペア:

[(1, 78158913), (3, 26052971), (7, 11165559), (19, 4113627), (21, 3721853), (57, 1371209), (133, 587661), (399, 195887)]