20187799215

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{571}}^1\times {\mathrm{63703}}^1$

素因数の和:64319

約数の個数: 32

約数和(自身を含む): 33232083456

約数和(自身を除く): 13044284241

約数列:

[1, 3, 5, 15, 37, 111, 185, 555, 571, 1713, 2855, 8565, 21127, 63381, 63703, 105635, 191109, 316905, 318515, 955545, 2357011, 7071033, 11785055, 35355165, 36374413, 109123239, 181872065, 545616195, 1345853281, 4037559843, 6729266405, 20187799215]

約数ペア:

[(1, 20187799215), (3, 6729266405), (5, 4037559843), (15, 1345853281), (37, 545616195), (111, 181872065), (185, 109123239), (555, 36374413), (571, 35355165), (1713, 11785055), (2855, 7071033), (8565, 2357011), (21127, 955545), (63381, 318515), (63703, 316905), (105635, 191109)]