18995535

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1709}}^1$

素因数の和:1752

約数の個数: 48

約数和(自身を含む): 37346400

約数和(自身を除く): 18350865

約数列:

[1, 3, 5, 9, 13, 15, 19, 39, 45, 57, 65, 95, 117, 171, 195, 247, 285, 585, 741, 855, 1235, 1709, 2223, 3705, 5127, 8545, 11115, 15381, 22217, 25635, 32471, 66651, 76905, 97413, 111085, 162355, 199953, 292239, 333255, 422123, 487065, 999765, 1266369, 1461195, 2110615, 3799107, 6331845, 18995535]

約数ペア:

[(1, 18995535), (3, 6331845), (5, 3799107), (9, 2110615), (13, 1461195), (15, 1266369), (19, 999765), (39, 487065), (45, 422123), (57, 333255), (65, 292239), (95, 199953), (117, 162355), (171, 111085), (195, 97413), (247, 76905), (285, 66651), (585, 32471), (741, 25635), (855, 22217), (1235, 15381), (1709, 11115), (2223, 8545), (3705, 5127)]