216753313

素因数分解:

$7^2\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{571}}^1$

素因数の和:773

約数の個数: 24

約数和(自身を含む): 258745344

約数和(自身を除く): 41992031

約数列:

[1, 7, 49, 61, 127, 427, 571, 889, 2989, 3997, 6223, 7747, 27979, 34831, 54229, 72517, 243817, 379603, 507619, 1706719, 3553333, 4423537, 30964759, 216753313]

約数ペア:

[(1, 216753313), (7, 30964759), (49, 4423537), (61, 3553333), (127, 1706719), (427, 507619), (571, 379603), (889, 243817), (2989, 72517), (3997, 54229), (6223, 34831), (7747, 27979)]