21387456

素因数分解:

$2^6\times 3^3\times {\mathrm{12377}}^1$

素因数の和:12398

約数の個数: 56

約数和(自身を含む): 62880240

約数和(自身を除く): 41492784

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 96, 108, 144, 192, 216, 288, 432, 576, 864, 1728, 12377, 24754, 37131, 49508, 74262, 99016, 111393, 148524, 198032, 222786, 297048, 334179, 396064, 445572, 594096, 668358, 792128, 891144, 1188192, 1336716, 1782288, 2376384, 2673432, 3564576, 5346864, 7129152, 10693728, 21387456]

約数ペア:

[(1, 21387456), (2, 10693728), (3, 7129152), (4, 5346864), (6, 3564576), (8, 2673432), (9, 2376384), (12, 1782288), (16, 1336716), (18, 1188192), (24, 891144), (27, 792128), (32, 668358), (36, 594096), (48, 445572), (54, 396064), (64, 334179), (72, 297048), (96, 222786), (108, 198032), (144, 148524), (192, 111393), (216, 99016), (288, 74262), (432, 49508), (576, 37131), (864, 24754), (1728, 12377)]