21163264

素因数分解:

$2^8\times {\mathrm{19}}^2\times {\mathrm{229}}^1$

素因数の和:283

約数の個数: 54

約数和(自身を含む): 44778930

約数和(自身を除く): 23615666

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 229, 256, 304, 361, 458, 608, 722, 916, 1216, 1444, 1832, 2432, 2888, 3664, 4351, 4864, 5776, 7328, 8702, 11552, 14656, 17404, 23104, 29312, 34808, 46208, 58624, 69616, 82669, 92416, 139232, 165338, 278464, 330676, 556928, 661352, 1113856, 1322704, 2645408, 5290816, 10581632, 21163264]

約数ペア:

[(1, 21163264), (2, 10581632), (4, 5290816), (8, 2645408), (16, 1322704), (19, 1113856), (32, 661352), (38, 556928), (64, 330676), (76, 278464), (128, 165338), (152, 139232), (229, 92416), (256, 82669), (304, 69616), (361, 58624), (458, 46208), (608, 34808), (722, 29312), (916, 23104), (1216, 17404), (1444, 14656), (1832, 11552), (2432, 8702), (2888, 7328), (3664, 5776), (4351, 4864)]