21194216

素因数分解:

$2^3\times {\mathrm{59}}^1\times {\mathrm{83}}^1\times {\mathrm{541}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 40975200

約数和(自身を除く): 19780984

約数列:

[1, 2, 4, 8, 59, 83, 118, 166, 236, 332, 472, 541, 664, 1082, 2164, 4328, 4897, 9794, 19588, 31919, 39176, 44903, 63838, 89806, 127676, 179612, 255352, 359224, 2649277, 5298554, 10597108, 21194216]

約数ペア:

[(1, 21194216), (2, 10597108), (4, 5298554), (8, 2649277), (59, 359224), (83, 255352), (118, 179612), (166, 127676), (236, 89806), (332, 63838), (472, 44903), (541, 39176), (664, 31919), (1082, 19588), (2164, 9794), (4328, 4897)]