21078134

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19553}}^1$

素因数の和:19580

約数の個数: 24

約数和(自身を含む): 40124808

約数和(自身を除く): 19046674

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 19553, 39106, 136871, 215083, 273742, 430166, 958097, 1505581, 1916194, 3011162, 10539067, 21078134]

約数ペア:

[(1, 21078134), (2, 10539067), (7, 3011162), (11, 1916194), (14, 1505581), (22, 958097), (49, 430166), (77, 273742), (98, 215083), (154, 136871), (539, 39106), (1078, 19553)]