161987854

素因数分解:

$2^1\times 7^1\times {\mathrm{557}}^1\times {\mathrm{20773}}^1$

素因数の和:21339

約数の個数: 16

約数和(自身を含む): 278205408

約数和(自身を除く): 116217554

約数列:

[1, 2, 7, 14, 557, 1114, 3899, 7798, 20773, 41546, 145411, 290822, 11570561, 23141122, 80993927, 161987854]

約数ペア:

[(1, 161987854), (2, 80993927), (7, 23141122), (14, 11570561), (557, 290822), (1114, 145411), (3899, 41546), (7798, 20773)]