64747839

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{1481}}^1$

素因数の和:1575

約数の個数: 32

約数和(自身を含む): 99590400

約数和(自身を除く): 34842561

約数列:

[1, 3, 13, 19, 39, 57, 59, 177, 247, 741, 767, 1121, 1481, 2301, 3363, 4443, 14573, 19253, 28139, 43719, 57759, 84417, 87379, 262137, 365807, 1097421, 1135927, 1660201, 3407781, 4980603, 21582613, 64747839]

約数ペア:

[(1, 64747839), (3, 21582613), (13, 4980603), (19, 3407781), (39, 1660201), (57, 1135927), (59, 1097421), (177, 365807), (247, 262137), (741, 87379), (767, 84417), (1121, 57759), (1481, 43719), (2301, 28139), (3363, 19253), (4443, 14573)]