21000612440

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{14189603}}^1$

素因数の和:14189651

約数の個数: 32

約数和(自身を含む): 48528445680

約数和(自身を除く): 27527833240

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 14189603, 28379206, 56758412, 70948015, 113516824, 141896030, 283792060, 525015311, 567584120, 1050030622, 2100061244, 2625076555, 4200122488, 5250153110, 10500306220, 21000612440]

約数ペア:

[(1, 21000612440), (2, 10500306220), (4, 5250153110), (5, 4200122488), (8, 2625076555), (10, 2100061244), (20, 1050030622), (37, 567584120), (40, 525015311), (74, 283792060), (148, 141896030), (185, 113516824), (296, 70948015), (370, 56758412), (740, 28379206), (1480, 14189603)]