21931168

素因数分解:

$2^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5153}}^1$

素因数の和:5189

約数の個数: 48

約数和(自身を含む): 51952320

約数和(自身を除く): 30021152

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 76, 112, 133, 152, 224, 266, 304, 532, 608, 1064, 2128, 4256, 5153, 10306, 20612, 36071, 41224, 72142, 82448, 97907, 144284, 164896, 195814, 288568, 391628, 577136, 685349, 783256, 1154272, 1370698, 1566512, 2741396, 3133024, 5482792, 10965584, 21931168]

約数ペア:

[(1, 21931168), (2, 10965584), (4, 5482792), (7, 3133024), (8, 2741396), (14, 1566512), (16, 1370698), (19, 1154272), (28, 783256), (32, 685349), (38, 577136), (56, 391628), (76, 288568), (112, 195814), (133, 164896), (152, 144284), (224, 97907), (266, 82448), (304, 72142), (532, 41224), (608, 36071), (1064, 20612), (2128, 10306), (4256, 5153)]