21783350

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{181}}^1$

素因数の和:305

約数の個数: 48

約数和(自身を含む): 42653520

約数和(自身を除く): 20870170

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 83, 145, 166, 181, 290, 362, 415, 725, 830, 905, 1450, 1810, 2075, 2407, 4150, 4525, 4814, 5249, 9050, 10498, 12035, 15023, 24070, 26245, 30046, 52490, 60175, 75115, 120350, 131225, 150230, 262450, 375575, 435667, 751150, 871334, 2178335, 4356670, 10891675, 21783350]

約数ペア:

[(1, 21783350), (2, 10891675), (5, 4356670), (10, 2178335), (25, 871334), (29, 751150), (50, 435667), (58, 375575), (83, 262450), (145, 150230), (166, 131225), (181, 120350), (290, 75115), (362, 60175), (415, 52490), (725, 30046), (830, 26245), (905, 24070), (1450, 15023), (1810, 12035), (2075, 10498), (2407, 9050), (4150, 5249), (4525, 4814)]