21209400

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{11783}}^1$

素因数の和:11805

約数の個数: 72

約数和(自身を含む): 71234280

約数和(自身を除く): 50024880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 150, 180, 200, 225, 300, 360, 450, 600, 900, 1800, 11783, 23566, 35349, 47132, 58915, 70698, 94264, 106047, 117830, 141396, 176745, 212094, 235660, 282792, 294575, 353490, 424188, 471320, 530235, 589150, 706980, 848376, 883725, 1060470, 1178300, 1413960, 1767450, 2120940, 2356600, 2651175, 3534900, 4241880, 5302350, 7069800, 10604700, 21209400]

約数ペア:

[(1, 21209400), (2, 10604700), (3, 7069800), (4, 5302350), (5, 4241880), (6, 3534900), (8, 2651175), (9, 2356600), (10, 2120940), (12, 1767450), (15, 1413960), (18, 1178300), (20, 1060470), (24, 883725), (25, 848376), (30, 706980), (36, 589150), (40, 530235), (45, 471320), (50, 424188), (60, 353490), (72, 294575), (75, 282792), (90, 235660), (100, 212094), (120, 176745), (150, 141396), (180, 117830), (200, 106047), (225, 94264), (300, 70698), (360, 58915), (450, 47132), (600, 35349), (900, 23566), (1800, 11783)]