18951955

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:259

約数の個数: 32

約数和(自身を含む): 26046720

約数和(自身を除く): 7094765

約数列:

[1, 5, 11, 37, 55, 67, 139, 185, 335, 407, 695, 737, 1529, 2035, 2479, 3685, 5143, 7645, 9313, 12395, 25715, 27269, 46565, 56573, 102443, 136345, 282865, 344581, 512215, 1722905, 3790391, 18951955]

約数ペア:

[(1, 18951955), (5, 3790391), (11, 1722905), (37, 512215), (55, 344581), (67, 282865), (139, 136345), (185, 102443), (335, 56573), (407, 46565), (695, 27269), (737, 25715), (1529, 12395), (2035, 9313), (2479, 7645), (3685, 5143)]