28104498

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{21991}}^1$

素因数の和:22070

約数の個数: 24

約数和(自身を含む): 61753536

約数和(自身を除く): 33649038

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 21991, 43982, 65973, 131946, 197919, 395838, 1561361, 3122722, 4684083, 9368166, 14052249, 28104498]

約数ペア:

[(1, 28104498), (2, 14052249), (3, 9368166), (6, 4684083), (9, 3122722), (18, 1561361), (71, 395838), (142, 197919), (213, 131946), (426, 65973), (639, 43982), (1278, 21991)]