21811500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:193

約数の個数: 144

約数和(自身を含む): 71207136

約数和(自身を除く): 49395636

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 37, 45, 50, 60, 74, 75, 90, 100, 111, 125, 131, 148, 150, 180, 185, 222, 225, 250, 262, 300, 333, 370, 375, 393, 444, 450, 500, 524, 555, 655, 666, 740, 750, 786, 900, 925, 1110, 1125, 1179, 1310, 1332, 1500, 1572, 1665, 1850, 1965, 2220, 2250, 2358, 2620, 2775, 3275, 3330, 3700, 3930, 4500, 4625, 4716, 4847, 5550, 5895, 6550, 6660, 7860, 8325, 9250, 9694, 9825, 11100, 11790, 13100, 13875, 14541, 16375, 16650, 18500, 19388, 19650, 23580, 24235, 27750, 29082, 29475, 32750, 33300, 39300, 41625, 43623, 48470, 49125, 55500, 58164, 58950, 65500, 72705, 83250, 87246, 96940, 98250, 117900, 121175, 145410, 147375, 166500, 174492, 196500, 218115, 242350, 290820, 294750, 363525, 436230, 484700, 589500, 605875, 727050, 872460, 1090575, 1211750, 1454100, 1817625, 2181150, 2423500, 3635250, 4362300, 5452875, 7270500, 10905750, 21811500]

約数ペア:

[(1, 21811500), (2, 10905750), (3, 7270500), (4, 5452875), (5, 4362300), (6, 3635250), (9, 2423500), (10, 2181150), (12, 1817625), (15, 1454100), (18, 1211750), (20, 1090575), (25, 872460), (30, 727050), (36, 605875), (37, 589500), (45, 484700), (50, 436230), (60, 363525), (74, 294750), (75, 290820), (90, 242350), (100, 218115), (111, 196500), (125, 174492), (131, 166500), (148, 147375), (150, 145410), (180, 121175), (185, 117900), (222, 98250), (225, 96940), (250, 87246), (262, 83250), (300, 72705), (333, 65500), (370, 58950), (375, 58164), (393, 55500), (444, 49125), (450, 48470), (500, 43623), (524, 41625), (555, 39300), (655, 33300), (666, 32750), (740, 29475), (750, 29082), (786, 27750), (900, 24235), (925, 23580), (1110, 19650), (1125, 19388), (1179, 18500), (1310, 16650), (1332, 16375), (1500, 14541), (1572, 13875), (1665, 13100), (1850, 11790), (1965, 11100), (2220, 9825), (2250, 9694), (2358, 9250), (2620, 8325), (2775, 7860), (3275, 6660), (3330, 6550), (3700, 5895), (3930, 5550), (4500, 4847), (4625, 4716)]