21018204

素因数分解:

$2^2\times 3^4\times {\mathrm{64871}}^1$

素因数の和:64887

約数の個数: 30

約数和(自身を含む): 54946584

約数和(自身を除く): 33928380

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 64871, 129742, 194613, 259484, 389226, 583839, 778452, 1167678, 1751517, 2335356, 3503034, 5254551, 7006068, 10509102, 21018204]

約数ペア:

[(1, 21018204), (2, 10509102), (3, 7006068), (4, 5254551), (6, 3503034), (9, 2335356), (12, 1751517), (18, 1167678), (27, 778452), (36, 583839), (54, 389226), (81, 259484), (108, 194613), (162, 129742), (324, 64871)]