21648330

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:261

約数の個数: 128

約数和(自身を含む): 65007360

約数和(自身を除く): 43359030

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 27, 30, 33, 37, 45, 54, 55, 66, 74, 90, 99, 110, 111, 135, 165, 185, 197, 198, 222, 270, 297, 330, 333, 370, 394, 407, 495, 555, 591, 594, 666, 814, 985, 990, 999, 1110, 1182, 1221, 1485, 1665, 1773, 1970, 1998, 2035, 2167, 2442, 2955, 2970, 3330, 3546, 3663, 4070, 4334, 4995, 5319, 5910, 6105, 6501, 7289, 7326, 8865, 9990, 10638, 10835, 10989, 12210, 13002, 14578, 17730, 18315, 19503, 21670, 21867, 21978, 26595, 32505, 36445, 36630, 39006, 43734, 53190, 54945, 58509, 65010, 65601, 72890, 80179, 97515, 109335, 109890, 117018, 131202, 160358, 195030, 196803, 218670, 240537, 292545, 328005, 393606, 400895, 481074, 585090, 656010, 721611, 801790, 984015, 1202685, 1443222, 1968030, 2164833, 2405370, 3608055, 4329666, 7216110, 10824165, 21648330]

約数ペア:

[(1, 21648330), (2, 10824165), (3, 7216110), (5, 4329666), (6, 3608055), (9, 2405370), (10, 2164833), (11, 1968030), (15, 1443222), (18, 1202685), (22, 984015), (27, 801790), (30, 721611), (33, 656010), (37, 585090), (45, 481074), (54, 400895), (55, 393606), (66, 328005), (74, 292545), (90, 240537), (99, 218670), (110, 196803), (111, 195030), (135, 160358), (165, 131202), (185, 117018), (197, 109890), (198, 109335), (222, 97515), (270, 80179), (297, 72890), (330, 65601), (333, 65010), (370, 58509), (394, 54945), (407, 53190), (495, 43734), (555, 39006), (591, 36630), (594, 36445), (666, 32505), (814, 26595), (985, 21978), (990, 21867), (999, 21670), (1110, 19503), (1182, 18315), (1221, 17730), (1485, 14578), (1665, 13002), (1773, 12210), (1970, 10989), (1998, 10835), (2035, 10638), (2167, 9990), (2442, 8865), (2955, 7326), (2970, 7289), (3330, 6501), (3546, 6105), (3663, 5910), (4070, 5319), (4334, 4995)]