21423960

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{239}}^1$

素因数の和:342

約数の個数: 128

約数和(自身を含む): 72576000

約数和(自身を除く): 51152040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 83, 90, 108, 120, 135, 166, 180, 216, 239, 249, 270, 332, 360, 415, 478, 498, 540, 664, 717, 747, 830, 956, 996, 1080, 1195, 1245, 1434, 1494, 1660, 1912, 1992, 2151, 2241, 2390, 2490, 2868, 2988, 3320, 3585, 3735, 4302, 4482, 4780, 4980, 5736, 5976, 6453, 7170, 7470, 8604, 8964, 9560, 9960, 10755, 11205, 12906, 14340, 14940, 17208, 17928, 19837, 21510, 22410, 25812, 28680, 29880, 32265, 39674, 43020, 44820, 51624, 59511, 64530, 79348, 86040, 89640, 99185, 119022, 129060, 158696, 178533, 198370, 238044, 258120, 297555, 357066, 396740, 476088, 535599, 595110, 714132, 793480, 892665, 1071198, 1190220, 1428264, 1785330, 2142396, 2380440, 2677995, 3570660, 4284792, 5355990, 7141320, 10711980, 21423960]

約数ペア:

[(1, 21423960), (2, 10711980), (3, 7141320), (4, 5355990), (5, 4284792), (6, 3570660), (8, 2677995), (9, 2380440), (10, 2142396), (12, 1785330), (15, 1428264), (18, 1190220), (20, 1071198), (24, 892665), (27, 793480), (30, 714132), (36, 595110), (40, 535599), (45, 476088), (54, 396740), (60, 357066), (72, 297555), (83, 258120), (90, 238044), (108, 198370), (120, 178533), (135, 158696), (166, 129060), (180, 119022), (216, 99185), (239, 89640), (249, 86040), (270, 79348), (332, 64530), (360, 59511), (415, 51624), (478, 44820), (498, 43020), (540, 39674), (664, 32265), (717, 29880), (747, 28680), (830, 25812), (956, 22410), (996, 21510), (1080, 19837), (1195, 17928), (1245, 17208), (1434, 14940), (1494, 14340), (1660, 12906), (1912, 11205), (1992, 10755), (2151, 9960), (2241, 9560), (2390, 8964), (2490, 8604), (2868, 7470), (2988, 7170), (3320, 6453), (3585, 5976), (3735, 5736), (4302, 4980), (4482, 4780)]