71306781

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1753}}^1$

素因数の和:1925

約数の個数: 32

約数和(自身を含む): 117868800

約数和(自身を除く): 46562019

約数列:

[1, 3, 7, 13, 21, 39, 91, 149, 273, 447, 1043, 1753, 1937, 3129, 5259, 5811, 12271, 13559, 22789, 36813, 40677, 68367, 159523, 261197, 478569, 783591, 1828379, 3395561, 5485137, 10186683, 23768927, 71306781]

約数ペア:

[(1, 71306781), (3, 23768927), (7, 10186683), (13, 5485137), (21, 3395561), (39, 1828379), (91, 783591), (149, 478569), (273, 261197), (447, 159523), (1043, 68367), (1753, 40677), (1937, 36813), (3129, 22789), (5259, 13559), (5811, 12271)]