21018744

素因数分解:

$2^3\times 3^3\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:162

約数の個数: 128

約数和(自身を含む): 62515200

約数和(自身を除く): 41496456

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 31, 36, 43, 54, 62, 72, 73, 86, 93, 108, 124, 129, 146, 172, 186, 216, 219, 248, 258, 279, 292, 344, 372, 387, 438, 516, 558, 584, 657, 744, 774, 837, 876, 1032, 1116, 1161, 1314, 1333, 1548, 1674, 1752, 1971, 2232, 2263, 2322, 2628, 2666, 3096, 3139, 3348, 3942, 3999, 4526, 4644, 5256, 5332, 6278, 6696, 6789, 7884, 7998, 9052, 9288, 9417, 10664, 11997, 12556, 13578, 15768, 15996, 18104, 18834, 20367, 23994, 25112, 27156, 28251, 31992, 35991, 37668, 40734, 47988, 54312, 56502, 61101, 71982, 75336, 81468, 84753, 95976, 97309, 113004, 122202, 143964, 162936, 169506, 194618, 226008, 244404, 287928, 291927, 339012, 389236, 488808, 583854, 678024, 778472, 875781, 1167708, 1751562, 2335416, 2627343, 3503124, 5254686, 7006248, 10509372, 21018744]

約数ペア:

[(1, 21018744), (2, 10509372), (3, 7006248), (4, 5254686), (6, 3503124), (8, 2627343), (9, 2335416), (12, 1751562), (18, 1167708), (24, 875781), (27, 778472), (31, 678024), (36, 583854), (43, 488808), (54, 389236), (62, 339012), (72, 291927), (73, 287928), (86, 244404), (93, 226008), (108, 194618), (124, 169506), (129, 162936), (146, 143964), (172, 122202), (186, 113004), (216, 97309), (219, 95976), (248, 84753), (258, 81468), (279, 75336), (292, 71982), (344, 61101), (372, 56502), (387, 54312), (438, 47988), (516, 40734), (558, 37668), (584, 35991), (657, 31992), (744, 28251), (774, 27156), (837, 25112), (876, 23994), (1032, 20367), (1116, 18834), (1161, 18104), (1314, 15996), (1333, 15768), (1548, 13578), (1674, 12556), (1752, 11997), (1971, 10664), (2232, 9417), (2263, 9288), (2322, 9052), (2628, 7998), (2666, 7884), (3096, 6789), (3139, 6696), (3348, 6278), (3942, 5332), (3999, 5256), (4526, 4644)]