21596673

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{479}}^1$

素因数の和:621

約数の個数: 32

約数和(自身を含む): 35020800

約数和(自身を除く): 13424127

約数列:

[1, 3, 7, 19, 21, 57, 113, 133, 339, 399, 479, 791, 1437, 2147, 2373, 3353, 6441, 9101, 10059, 15029, 27303, 45087, 54127, 63707, 162381, 191121, 378889, 1028413, 1136667, 3085239, 7198891, 21596673]

約数ペア:

[(1, 21596673), (3, 7198891), (7, 3085239), (19, 1136667), (21, 1028413), (57, 378889), (113, 191121), (133, 162381), (339, 63707), (399, 54127), (479, 45087), (791, 27303), (1437, 15029), (2147, 10059), (2373, 9101), (3353, 6441)]