216349441

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{20509}}^1$

素因数の和:20664

約数の個数: 16

約数和(自身を含む): 271716480

約数和(自身を除く): 55367039

約数列:

[1, 7, 11, 77, 137, 959, 1507, 10549, 20509, 143563, 225599, 1579193, 2809733, 19668131, 30907063, 216349441]

約数ペア:

[(1, 216349441), (7, 30907063), (11, 19668131), (77, 2809733), (137, 1579193), (959, 225599), (1507, 143563), (10549, 20509)]