18834985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{151}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 26046720

約数和(自身を除く): 7211735

約数列:

[1, 5, 13, 19, 65, 95, 101, 151, 247, 505, 755, 1235, 1313, 1919, 1963, 2869, 6565, 9595, 9815, 14345, 15251, 24947, 37297, 76255, 124735, 186485, 198263, 289769, 991315, 1448845, 3766997, 18834985]

約数ペア:

[(1, 18834985), (5, 3766997), (13, 1448845), (19, 991315), (65, 289769), (95, 198263), (101, 186485), (151, 124735), (247, 76255), (505, 37297), (755, 24947), (1235, 15251), (1313, 14345), (1919, 9815), (1963, 9595), (2869, 6565)]