21663378

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:180

約数の個数: 96

約数和(自身を含む): 54991872

約数和(自身を除く): 33328494

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 23, 33, 46, 66, 67, 69, 71, 99, 134, 138, 142, 198, 201, 207, 213, 253, 402, 414, 426, 506, 603, 639, 737, 759, 781, 1206, 1278, 1474, 1518, 1541, 1562, 1633, 2211, 2277, 2343, 3082, 3266, 4422, 4554, 4623, 4686, 4757, 4899, 6633, 7029, 9246, 9514, 9798, 13266, 13869, 14058, 14271, 14697, 16951, 17963, 27738, 28542, 29394, 33902, 35926, 42813, 50853, 52327, 53889, 85626, 101706, 104654, 107778, 109411, 152559, 156981, 161667, 218822, 305118, 313962, 323334, 328233, 470943, 656466, 941886, 984699, 1203521, 1969398, 2407042, 3610563, 7221126, 10831689, 21663378]

約数ペア:

[(1, 21663378), (2, 10831689), (3, 7221126), (6, 3610563), (9, 2407042), (11, 1969398), (18, 1203521), (22, 984699), (23, 941886), (33, 656466), (46, 470943), (66, 328233), (67, 323334), (69, 313962), (71, 305118), (99, 218822), (134, 161667), (138, 156981), (142, 152559), (198, 109411), (201, 107778), (207, 104654), (213, 101706), (253, 85626), (402, 53889), (414, 52327), (426, 50853), (506, 42813), (603, 35926), (639, 33902), (737, 29394), (759, 28542), (781, 27738), (1206, 17963), (1278, 16951), (1474, 14697), (1518, 14271), (1541, 14058), (1562, 13869), (1633, 13266), (2211, 9798), (2277, 9514), (2343, 9246), (3082, 7029), (3266, 6633), (4422, 4899), (4554, 4757), (4623, 4686)]