199440397

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 235356800

約数和(自身を除く): 35916403

約数列:

[1, 13, 19, 37, 139, 157, 247, 481, 703, 1807, 2041, 2641, 2983, 5143, 5809, 9139, 21823, 34333, 38779, 66859, 75517, 97717, 110371, 283699, 414637, 807451, 1270321, 1434823, 5390281, 10496863, 15341569, 199440397]

約数ペア:

[(1, 199440397), (13, 15341569), (19, 10496863), (37, 5390281), (139, 1434823), (157, 1270321), (247, 807451), (481, 414637), (703, 283699), (1807, 110371), (2041, 97717), (2641, 75517), (2983, 66859), (5143, 38779), (5809, 34333), (9139, 21823)]