20333445

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{659}}^1$

素因数の和:706

約数の個数: 48

約数和(自身を含む): 37920960

約数和(自身を除く): 17587515

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 121, 165, 187, 255, 363, 561, 605, 659, 935, 1815, 1977, 2057, 2805, 3295, 6171, 7249, 9885, 10285, 11203, 21747, 30855, 33609, 36245, 56015, 79739, 108735, 123233, 168045, 239217, 369699, 398695, 616165, 1196085, 1355563, 1848495, 4066689, 6777815, 20333445]

約数ペア:

[(1, 20333445), (3, 6777815), (5, 4066689), (11, 1848495), (15, 1355563), (17, 1196085), (33, 616165), (51, 398695), (55, 369699), (85, 239217), (121, 168045), (165, 123233), (187, 108735), (255, 79739), (363, 56015), (561, 36245), (605, 33609), (659, 30855), (935, 21747), (1815, 11203), (1977, 10285), (2057, 9885), (2805, 7249), (3295, 6171)]