21342477

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:313

約数の個数: 32

約数和(自身を含む): 32112640

約数和(自身を除く): 10770163

約数列:

[1, 3, 13, 31, 39, 93, 127, 139, 381, 403, 417, 1209, 1651, 1807, 3937, 4309, 4953, 5421, 11811, 12927, 17653, 51181, 52959, 56017, 153543, 168051, 229489, 547243, 688467, 1641729, 7114159, 21342477]

約数ペア:

[(1, 21342477), (3, 7114159), (13, 1641729), (31, 688467), (39, 547243), (93, 229489), (127, 168051), (139, 153543), (381, 56017), (403, 52959), (417, 51181), (1209, 17653), (1651, 12927), (1807, 11811), (3937, 5421), (4309, 4953)]