21039456

素因数分解:

$2^5\times 3^1\times {\mathrm{47}}^1\times {\mathrm{4663}}^1$

素因数の和:4723

約数の個数: 48

約数和(自身を含む): 56415744

約数和(自身を除く): 35376288

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 47, 48, 94, 96, 141, 188, 282, 376, 564, 752, 1128, 1504, 2256, 4512, 4663, 9326, 13989, 18652, 27978, 37304, 55956, 74608, 111912, 149216, 219161, 223824, 438322, 447648, 657483, 876644, 1314966, 1753288, 2629932, 3506576, 5259864, 7013152, 10519728, 21039456]

約数ペア:

[(1, 21039456), (2, 10519728), (3, 7013152), (4, 5259864), (6, 3506576), (8, 2629932), (12, 1753288), (16, 1314966), (24, 876644), (32, 657483), (47, 447648), (48, 438322), (94, 223824), (96, 219161), (141, 149216), (188, 111912), (282, 74608), (376, 55956), (564, 37304), (752, 27978), (1128, 18652), (1504, 13989), (2256, 9326), (4512, 4663)]