20829303

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{617}}^1$

素因数の和:676

約数の個数: 36

約数和(自身を含む): 34192704

約数和(自身を除く): 13363401

約数列:

[1, 3, 9, 11, 31, 33, 93, 99, 121, 279, 341, 363, 617, 1023, 1089, 1851, 3069, 3751, 5553, 6787, 11253, 19127, 20361, 33759, 57381, 61083, 74657, 172143, 210397, 223971, 631191, 671913, 1893573, 2314367, 6943101, 20829303]

約数ペア:

[(1, 20829303), (3, 6943101), (9, 2314367), (11, 1893573), (31, 671913), (33, 631191), (93, 223971), (99, 210397), (121, 172143), (279, 74657), (341, 61083), (363, 57381), (617, 33759), (1023, 20361), (1089, 19127), (1851, 11253), (3069, 6787), (3751, 5553)]