19156815

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{223}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 35223552

約数和(自身を除く): 16066737

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 83, 115, 207, 223, 249, 345, 415, 669, 747, 1035, 1115, 1245, 1909, 2007, 3345, 3735, 5129, 5727, 9545, 10035, 15387, 17181, 18509, 25645, 28635, 46161, 55527, 76935, 85905, 92545, 166581, 230805, 277635, 425707, 832905, 1277121, 2128535, 3831363, 6385605, 19156815]

約数ペア:

[(1, 19156815), (3, 6385605), (5, 3831363), (9, 2128535), (15, 1277121), (23, 832905), (45, 425707), (69, 277635), (83, 230805), (115, 166581), (207, 92545), (223, 85905), (249, 76935), (345, 55527), (415, 46161), (669, 28635), (747, 25645), (1035, 18509), (1115, 17181), (1245, 15387), (1909, 10035), (2007, 9545), (3345, 5727), (3735, 5129)]