21310737

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{4999}}^1$

素因数の和:5045

約数の個数: 24

約数和(自身を含む): 34200000

約数和(自身を除く): 12889263

約数列:

[1, 3, 7, 21, 29, 49, 87, 147, 203, 609, 1421, 4263, 4999, 14997, 34993, 104979, 144971, 244951, 434913, 734853, 1014797, 3044391, 7103579, 21310737]

約数ペア:

[(1, 21310737), (3, 7103579), (7, 3044391), (21, 1014797), (29, 734853), (49, 434913), (87, 244951), (147, 144971), (203, 104979), (609, 34993), (1421, 14997), (4263, 4999)]