21812040

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{60589}}^1$

素因数の和:60606

約数の個数: 48

約数和(自身を含む): 70890300

約数和(自身を除く): 49078260

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 60589, 121178, 181767, 242356, 302945, 363534, 484712, 545301, 605890, 727068, 908835, 1090602, 1211780, 1454136, 1817670, 2181204, 2423560, 2726505, 3635340, 4362408, 5453010, 7270680, 10906020, 21812040]

約数ペア:

[(1, 21812040), (2, 10906020), (3, 7270680), (4, 5453010), (5, 4362408), (6, 3635340), (8, 2726505), (9, 2423560), (10, 2181204), (12, 1817670), (15, 1454136), (18, 1211780), (20, 1090602), (24, 908835), (30, 727068), (36, 605890), (40, 545301), (45, 484712), (60, 363534), (72, 302945), (90, 242356), (120, 181767), (180, 121178), (360, 60589)]