20657286

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2053}}^1$

素因数の和:2117

約数の個数: 48

約数和(自身を含む): 49345296

約数和(自身を除く): 28688010

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 43, 78, 86, 117, 129, 234, 258, 387, 559, 774, 1118, 1677, 2053, 3354, 4106, 5031, 6159, 10062, 12318, 18477, 26689, 36954, 53378, 80067, 88279, 160134, 176558, 240201, 264837, 480402, 529674, 794511, 1147627, 1589022, 2295254, 3442881, 6885762, 10328643, 20657286]

約数ペア:

[(1, 20657286), (2, 10328643), (3, 6885762), (6, 3442881), (9, 2295254), (13, 1589022), (18, 1147627), (26, 794511), (39, 529674), (43, 480402), (78, 264837), (86, 240201), (117, 176558), (129, 160134), (234, 88279), (258, 80067), (387, 53378), (559, 36954), (774, 26689), (1118, 18477), (1677, 12318), (2053, 10062), (3354, 6159), (4106, 5031)]