401931

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:131

約数の個数: 24

約数和(自身を含む): 640224

約数和(自身を除く): 238293

約数列:

[1, 3, 9, 17, 37, 51, 71, 111, 153, 213, 333, 629, 639, 1207, 1887, 2627, 3621, 5661, 7881, 10863, 23643, 44659, 133977, 401931]

約数ペア:

[(1, 401931), (3, 133977), (9, 44659), (17, 23643), (37, 10863), (51, 7881), (71, 5661), (111, 3621), (153, 2627), (213, 1887), (333, 1207), (629, 639)]