21784068

素因数分解:

$2^2\times 3^2\times {\mathrm{605113}}^1$

素因数の和:605123

約数の個数: 18

約数和(自身を含む): 55065374

約数和(自身を除く): 33281306

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 605113, 1210226, 1815339, 2420452, 3630678, 5446017, 7261356, 10892034, 21784068]

約数ペア:

[(1, 21784068), (2, 10892034), (3, 7261356), (4, 5446017), (6, 3630678), (9, 2420452), (12, 1815339), (18, 1210226), (36, 605113)]