21074872

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28949}}^1$

素因数の和:28975

約数の個数: 32

約数和(自身を含む): 48636000

約数和(自身を除く): 27561128

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 28949, 57898, 115796, 202643, 231592, 376337, 405286, 752674, 810572, 1505348, 1621144, 2634359, 3010696, 5268718, 10537436, 21074872]

約数ペア:

[(1, 21074872), (2, 10537436), (4, 5268718), (7, 3010696), (8, 2634359), (13, 1621144), (14, 1505348), (26, 810572), (28, 752674), (52, 405286), (56, 376337), (91, 231592), (104, 202643), (182, 115796), (364, 57898), (728, 28949)]