20921605150

素因数分解:

$2^1\times 5^2\times {\mathrm{509}}^1\times {\mathrm{822067}}^1$

素因数の和:822588

約数の個数: 24

約数和(自身を含む): 38990685240

約数和(自身を除く): 18069080090

約数列:

[1, 2, 5, 10, 25, 50, 509, 1018, 2545, 5090, 12725, 25450, 822067, 1644134, 4110335, 8220670, 20551675, 41103350, 418432103, 836864206, 2092160515, 4184321030, 10460802575, 20921605150]

約数ペア:

[(1, 20921605150), (2, 10460802575), (5, 4184321030), (10, 2092160515), (25, 836864206), (50, 418432103), (509, 41103350), (1018, 20551675), (2545, 8220670), (5090, 4110335), (12725, 1644134), (25450, 822067)]