78190021

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{50543}}^1$

素因数の和:50580

約数の個数: 16

約数和(自身を含む): 101896704

約数和(自身を除く): 23706683

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 50543, 353801, 657059, 859231, 4599413, 6014617, 11170003, 78190021]

約数ペア:

[(1, 78190021), (7, 11170003), (13, 6014617), (17, 4599413), (91, 859231), (119, 657059), (221, 353801), (1547, 50543)]