21496500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{17}}^1\times {\mathrm{281}}^1$

素因数の和:323

約数の個数: 144

約数和(自身を含む): 72058896

約数和(自身を除く): 50562396

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 25, 30, 34, 36, 45, 50, 51, 60, 68, 75, 85, 90, 100, 102, 125, 150, 153, 170, 180, 204, 225, 250, 255, 281, 300, 306, 340, 375, 425, 450, 500, 510, 562, 612, 750, 765, 843, 850, 900, 1020, 1124, 1125, 1275, 1405, 1500, 1530, 1686, 1700, 2125, 2250, 2529, 2550, 2810, 3060, 3372, 3825, 4215, 4250, 4500, 4777, 5058, 5100, 5620, 6375, 7025, 7650, 8430, 8500, 9554, 10116, 12645, 12750, 14050, 14331, 15300, 16860, 19108, 19125, 21075, 23885, 25290, 25500, 28100, 28662, 35125, 38250, 42150, 42993, 47770, 50580, 57324, 63225, 70250, 71655, 76500, 84300, 85986, 95540, 105375, 119425, 126450, 140500, 143310, 171972, 210750, 214965, 238850, 252900, 286620, 316125, 358275, 421500, 429930, 477700, 597125, 632250, 716550, 859860, 1074825, 1194250, 1264500, 1433100, 1791375, 2149650, 2388500, 3582750, 4299300, 5374125, 7165500, 10748250, 21496500]

約数ペア:

[(1, 21496500), (2, 10748250), (3, 7165500), (4, 5374125), (5, 4299300), (6, 3582750), (9, 2388500), (10, 2149650), (12, 1791375), (15, 1433100), (17, 1264500), (18, 1194250), (20, 1074825), (25, 859860), (30, 716550), (34, 632250), (36, 597125), (45, 477700), (50, 429930), (51, 421500), (60, 358275), (68, 316125), (75, 286620), (85, 252900), (90, 238850), (100, 214965), (102, 210750), (125, 171972), (150, 143310), (153, 140500), (170, 126450), (180, 119425), (204, 105375), (225, 95540), (250, 85986), (255, 84300), (281, 76500), (300, 71655), (306, 70250), (340, 63225), (375, 57324), (425, 50580), (450, 47770), (500, 42993), (510, 42150), (562, 38250), (612, 35125), (750, 28662), (765, 28100), (843, 25500), (850, 25290), (900, 23885), (1020, 21075), (1124, 19125), (1125, 19108), (1275, 16860), (1405, 15300), (1500, 14331), (1530, 14050), (1686, 12750), (1700, 12645), (2125, 10116), (2250, 9554), (2529, 8500), (2550, 8430), (2810, 7650), (3060, 7025), (3372, 6375), (3825, 5620), (4215, 5100), (4250, 5058), (4500, 4777)]