21567078

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:158

約数の個数: 96

約数和(自身を含む): 53778816

約数和(自身を除く): 32211738

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 37, 39, 47, 53, 74, 78, 94, 106, 111, 117, 141, 159, 222, 234, 282, 318, 333, 423, 477, 481, 611, 666, 689, 846, 954, 962, 1222, 1378, 1443, 1739, 1833, 1961, 2067, 2491, 2886, 3478, 3666, 3922, 4134, 4329, 4982, 5217, 5499, 5883, 6201, 7473, 8658, 10434, 10998, 11766, 12402, 14946, 15651, 17649, 22419, 22607, 25493, 31302, 32383, 35298, 44838, 45214, 50986, 64766, 67821, 76479, 92167, 97149, 135642, 152958, 184334, 194298, 203463, 229437, 276501, 291447, 406926, 458874, 553002, 582894, 829503, 1198171, 1659006, 2396342, 3594513, 7189026, 10783539, 21567078]

約数ペア:

[(1, 21567078), (2, 10783539), (3, 7189026), (6, 3594513), (9, 2396342), (13, 1659006), (18, 1198171), (26, 829503), (37, 582894), (39, 553002), (47, 458874), (53, 406926), (74, 291447), (78, 276501), (94, 229437), (106, 203463), (111, 194298), (117, 184334), (141, 152958), (159, 135642), (222, 97149), (234, 92167), (282, 76479), (318, 67821), (333, 64766), (423, 50986), (477, 45214), (481, 44838), (611, 35298), (666, 32383), (689, 31302), (846, 25493), (954, 22607), (962, 22419), (1222, 17649), (1378, 15651), (1443, 14946), (1739, 12402), (1833, 11766), (1961, 10998), (2067, 10434), (2491, 8658), (2886, 7473), (3478, 6201), (3666, 5883), (3922, 5499), (4134, 5217), (4329, 4982)]