21404072

素因数分解:

$2^3\times {\mathrm{127}}^1\times {\mathrm{21067}}^1$

素因数の和:21200

約数の個数: 16

約数和(自身を含む): 40450560

約数和(自身を除く): 19046488

約数列:

[1, 2, 4, 8, 127, 254, 508, 1016, 21067, 42134, 84268, 168536, 2675509, 5351018, 10702036, 21404072]

約数ペア:

[(1, 21404072), (2, 10702036), (4, 5351018), (8, 2675509), (127, 168536), (254, 84268), (508, 42134), (1016, 21067)]