213681328

素因数分解:

$2^4\times 7^1\times {\mathrm{103}}^1\times {\mathrm{18523}}^1$

素因数の和:18641

約数の個数: 40

約数和(自身を含む): 477771008

約数和(自身を除く): 264089680

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 103, 112, 206, 412, 721, 824, 1442, 1648, 2884, 5768, 11536, 18523, 37046, 74092, 129661, 148184, 259322, 296368, 518644, 1037288, 1907869, 2074576, 3815738, 7631476, 13355083, 15262952, 26710166, 30525904, 53420332, 106840664, 213681328]

約数ペア:

[(1, 213681328), (2, 106840664), (4, 53420332), (7, 30525904), (8, 26710166), (14, 15262952), (16, 13355083), (28, 7631476), (56, 3815738), (103, 2074576), (112, 1907869), (206, 1037288), (412, 518644), (721, 296368), (824, 259322), (1442, 148184), (1648, 129661), (2884, 74092), (5768, 37046), (11536, 18523)]