20994501

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{263}}^1$

素因数の和:377

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 10938939

約数列:

[1, 3, 11, 33, 41, 59, 123, 177, 263, 451, 649, 789, 1353, 1947, 2419, 2893, 7257, 8679, 10783, 15517, 26609, 32349, 46551, 79827, 118613, 170687, 355839, 512061, 636197, 1908591, 6998167, 20994501]

約数ペア:

[(1, 20994501), (3, 6998167), (11, 1908591), (33, 636197), (41, 512061), (59, 355839), (123, 170687), (177, 118613), (263, 79827), (451, 46551), (649, 32349), (789, 26609), (1353, 15517), (1947, 10783), (2419, 8679), (2893, 7257)]