21867392

素因数分解:

$2^7\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:223

約数の個数: 64

約数和(自身を含む): 46450800

約数和(自身を除く): 24583408

約数列:

[1, 2, 4, 8, 16, 29, 32, 43, 58, 64, 86, 116, 128, 137, 172, 232, 274, 344, 464, 548, 688, 928, 1096, 1247, 1376, 1856, 2192, 2494, 2752, 3712, 3973, 4384, 4988, 5504, 5891, 7946, 8768, 9976, 11782, 15892, 17536, 19952, 23564, 31784, 39904, 47128, 63568, 79808, 94256, 127136, 159616, 170839, 188512, 254272, 341678, 377024, 508544, 683356, 754048, 1366712, 2733424, 5466848, 10933696, 21867392]

約数ペア:

[(1, 21867392), (2, 10933696), (4, 5466848), (8, 2733424), (16, 1366712), (29, 754048), (32, 683356), (43, 508544), (58, 377024), (64, 341678), (86, 254272), (116, 188512), (128, 170839), (137, 159616), (172, 127136), (232, 94256), (274, 79808), (344, 63568), (464, 47128), (548, 39904), (688, 31784), (928, 23564), (1096, 19952), (1247, 17536), (1376, 15892), (1856, 11782), (2192, 9976), (2494, 8768), (2752, 7946), (3712, 5891), (3973, 5504), (4384, 4988)]