21157800

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{179}}^1\times {\mathrm{197}}^1$

素因数の和:395

約数の個数: 96

約数和(自身を含む): 66290400

約数和(自身を除く): 45132600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 100, 120, 150, 179, 197, 200, 300, 358, 394, 537, 591, 600, 716, 788, 895, 985, 1074, 1182, 1432, 1576, 1790, 1970, 2148, 2364, 2685, 2955, 3580, 3940, 4296, 4475, 4728, 4925, 5370, 5910, 7160, 7880, 8950, 9850, 10740, 11820, 13425, 14775, 17900, 19700, 21480, 23640, 26850, 29550, 35263, 35800, 39400, 53700, 59100, 70526, 105789, 107400, 118200, 141052, 176315, 211578, 282104, 352630, 423156, 528945, 705260, 846312, 881575, 1057890, 1410520, 1763150, 2115780, 2644725, 3526300, 4231560, 5289450, 7052600, 10578900, 21157800]

約数ペア:

[(1, 21157800), (2, 10578900), (3, 7052600), (4, 5289450), (5, 4231560), (6, 3526300), (8, 2644725), (10, 2115780), (12, 1763150), (15, 1410520), (20, 1057890), (24, 881575), (25, 846312), (30, 705260), (40, 528945), (50, 423156), (60, 352630), (75, 282104), (100, 211578), (120, 176315), (150, 141052), (179, 118200), (197, 107400), (200, 105789), (300, 70526), (358, 59100), (394, 53700), (537, 39400), (591, 35800), (600, 35263), (716, 29550), (788, 26850), (895, 23640), (985, 21480), (1074, 19700), (1182, 17900), (1432, 14775), (1576, 13425), (1790, 11820), (1970, 10740), (2148, 9850), (2364, 8950), (2685, 7880), (2955, 7160), (3580, 5910), (3940, 5370), (4296, 4925), (4475, 4728)]