138808319

素因数分解:

${\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{311}}^1$

素因数の和:495

約数の個数: 24

約数和(自身を含む): 159868800

約数和(自身を除く): 21060481

約数列:

[1, 13, 19, 139, 169, 247, 311, 1807, 2641, 3211, 4043, 5909, 23491, 34333, 43229, 52559, 76817, 446329, 561977, 821351, 998621, 7305701, 10677563, 138808319]

約数ペア:

[(1, 138808319), (13, 10677563), (19, 7305701), (139, 998621), (169, 821351), (247, 561977), (311, 446329), (1807, 76817), (2641, 52559), (3211, 43229), (4043, 34333), (5909, 23491)]