21186816

素因数分解:

$2^8\times 3^1\times 7^2\times {\mathrm{563}}^1$

素因数の和:596

約数の個数: 108

約数和(自身を含む): 65710512

約数和(自身を除く): 44523696

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 49, 56, 64, 84, 96, 98, 112, 128, 147, 168, 192, 196, 224, 256, 294, 336, 384, 392, 448, 563, 588, 672, 768, 784, 896, 1126, 1176, 1344, 1568, 1689, 1792, 2252, 2352, 2688, 3136, 3378, 3941, 4504, 4704, 5376, 6272, 6756, 7882, 9008, 9408, 11823, 12544, 13512, 15764, 18016, 18816, 23646, 27024, 27587, 31528, 36032, 37632, 47292, 54048, 55174, 63056, 72064, 82761, 94584, 108096, 110348, 126112, 144128, 165522, 189168, 216192, 220696, 252224, 331044, 378336, 432384, 441392, 504448, 662088, 756672, 882784, 1008896, 1324176, 1513344, 1765568, 2648352, 3026688, 3531136, 5296704, 7062272, 10593408, 21186816]

約数ペア:

[(1, 21186816), (2, 10593408), (3, 7062272), (4, 5296704), (6, 3531136), (7, 3026688), (8, 2648352), (12, 1765568), (14, 1513344), (16, 1324176), (21, 1008896), (24, 882784), (28, 756672), (32, 662088), (42, 504448), (48, 441392), (49, 432384), (56, 378336), (64, 331044), (84, 252224), (96, 220696), (98, 216192), (112, 189168), (128, 165522), (147, 144128), (168, 126112), (192, 110348), (196, 108096), (224, 94584), (256, 82761), (294, 72064), (336, 63056), (384, 55174), (392, 54048), (448, 47292), (563, 37632), (588, 36032), (672, 31528), (768, 27587), (784, 27024), (896, 23646), (1126, 18816), (1176, 18016), (1344, 15764), (1568, 13512), (1689, 12544), (1792, 11823), (2252, 9408), (2352, 9008), (2688, 7882), (3136, 6756), (3378, 6272), (3941, 5376), (4504, 4704)]