21183201

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{20117}}^1$

素因数の和:20142

約数の個数: 20

約数和(自身を含む): 34079892

約数和(自身を除く): 12896691

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 20117, 60351, 181053, 261521, 543159, 784563, 1629477, 2353689, 7061067, 21183201]

約数ペア:

[(1, 21183201), (3, 7061067), (9, 2353689), (13, 1629477), (27, 784563), (39, 543159), (81, 261521), (117, 181053), (351, 60351), (1053, 20117)]