20120667

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 31664640

約数和(自身を除く): 11543973

約数列:

[1, 3, 7, 21, 61, 113, 139, 183, 339, 417, 427, 791, 973, 1281, 2373, 2919, 6893, 8479, 15707, 20679, 25437, 47121, 48251, 59353, 109949, 144753, 178059, 329847, 958127, 2874381, 6706889, 20120667]

約数ペア:

[(1, 20120667), (3, 6706889), (7, 2874381), (21, 958127), (61, 329847), (113, 178059), (139, 144753), (183, 109949), (339, 59353), (417, 48251), (427, 47121), (791, 25437), (973, 20679), (1281, 15707), (2373, 8479), (2919, 6893)]