21071376

素因数分解:

$2^4\times 3^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:181

約数の個数: 120

約数和(自身を含む): 62558496

約数和(自身を除く): 41487120

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 41, 43, 48, 72, 82, 83, 86, 123, 129, 144, 164, 166, 172, 246, 249, 258, 328, 332, 344, 369, 387, 492, 498, 516, 656, 664, 688, 738, 747, 774, 984, 996, 1032, 1328, 1476, 1494, 1548, 1763, 1968, 1992, 2064, 2952, 2988, 3096, 3403, 3526, 3569, 3984, 5289, 5904, 5976, 6192, 6806, 7052, 7138, 10209, 10578, 10707, 11952, 13612, 14104, 14276, 15867, 20418, 21156, 21414, 27224, 28208, 28552, 30627, 31734, 32121, 40836, 42312, 42828, 54448, 57104, 61254, 63468, 64242, 81672, 84624, 85656, 122508, 126936, 128484, 146329, 163344, 171312, 245016, 253872, 256968, 292658, 438987, 490032, 513936, 585316, 877974, 1170632, 1316961, 1755948, 2341264, 2633922, 3511896, 5267844, 7023792, 10535688, 21071376]

約数ペア:

[(1, 21071376), (2, 10535688), (3, 7023792), (4, 5267844), (6, 3511896), (8, 2633922), (9, 2341264), (12, 1755948), (16, 1316961), (18, 1170632), (24, 877974), (36, 585316), (41, 513936), (43, 490032), (48, 438987), (72, 292658), (82, 256968), (83, 253872), (86, 245016), (123, 171312), (129, 163344), (144, 146329), (164, 128484), (166, 126936), (172, 122508), (246, 85656), (249, 84624), (258, 81672), (328, 64242), (332, 63468), (344, 61254), (369, 57104), (387, 54448), (492, 42828), (498, 42312), (516, 40836), (656, 32121), (664, 31734), (688, 30627), (738, 28552), (747, 28208), (774, 27224), (984, 21414), (996, 21156), (1032, 20418), (1328, 15867), (1476, 14276), (1494, 14104), (1548, 13612), (1763, 11952), (1968, 10707), (1992, 10578), (2064, 10209), (2952, 7138), (2988, 7052), (3096, 6806), (3403, 6192), (3526, 5976), (3569, 5904), (3984, 5289)]