21815712

素因数分解:

$2^5\times 3^2\times {\mathrm{211}}^1\times {\mathrm{359}}^1$

素因数の和:586

約数の個数: 72

約数和(自身を含む): 62506080

約数和(自身を除く): 40690368

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 211, 288, 359, 422, 633, 718, 844, 1077, 1266, 1436, 1688, 1899, 2154, 2532, 2872, 3231, 3376, 3798, 4308, 5064, 5744, 6462, 6752, 7596, 8616, 10128, 11488, 12924, 15192, 17232, 20256, 25848, 30384, 34464, 51696, 60768, 75749, 103392, 151498, 227247, 302996, 454494, 605992, 681741, 908988, 1211984, 1363482, 1817976, 2423968, 2726964, 3635952, 5453928, 7271904, 10907856, 21815712]

約数ペア:

[(1, 21815712), (2, 10907856), (3, 7271904), (4, 5453928), (6, 3635952), (8, 2726964), (9, 2423968), (12, 1817976), (16, 1363482), (18, 1211984), (24, 908988), (32, 681741), (36, 605992), (48, 454494), (72, 302996), (96, 227247), (144, 151498), (211, 103392), (288, 75749), (359, 60768), (422, 51696), (633, 34464), (718, 30384), (844, 25848), (1077, 20256), (1266, 17232), (1436, 15192), (1688, 12924), (1899, 11488), (2154, 10128), (2532, 8616), (2872, 7596), (3231, 6752), (3376, 6462), (3798, 5744), (4308, 5064)]