161981855

素因数分解:

$5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{10993}}^1$

素因数の和:11426

約数の個数: 16

約数和(自身を含む): 222694464

約数和(自身を除く): 60712609

約数列:

[1, 5, 7, 35, 421, 2105, 2947, 10993, 14735, 54965, 76951, 384755, 4628053, 23140265, 32396371, 161981855]

約数ペア:

[(1, 161981855), (5, 32396371), (7, 23140265), (35, 4628053), (421, 384755), (2105, 76951), (2947, 54965), (10993, 14735)]