21103836

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{135281}}^1$

素因数の和:135301

約数の個数: 24

約数和(自身を含む): 53030544

約数和(自身を除く): 31926708

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 135281, 270562, 405843, 541124, 811686, 1623372, 1758653, 3517306, 5275959, 7034612, 10551918, 21103836]

約数ペア:

[(1, 21103836), (2, 10551918), (3, 7034612), (4, 5275959), (6, 3517306), (12, 1758653), (13, 1623372), (26, 811686), (39, 541124), (52, 405843), (78, 270562), (156, 135281)]