19045173

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 31781376

約数和(自身を除く): 12736203

約数列:

[1, 3, 7, 21, 23, 43, 49, 69, 129, 131, 147, 161, 301, 393, 483, 903, 917, 989, 1127, 2107, 2751, 2967, 3013, 3381, 5633, 6321, 6419, 6923, 9039, 16899, 19257, 20769, 21091, 39431, 48461, 63273, 118293, 129559, 145383, 147637, 276017, 388677, 442911, 828051, 906913, 2720739, 6348391, 19045173]

約数ペア:

[(1, 19045173), (3, 6348391), (7, 2720739), (21, 906913), (23, 828051), (43, 442911), (49, 388677), (69, 276017), (129, 147637), (131, 145383), (147, 129559), (161, 118293), (301, 63273), (393, 48461), (483, 39431), (903, 21091), (917, 20769), (989, 19257), (1127, 16899), (2107, 9039), (2751, 6923), (2967, 6419), (3013, 6321), (3381, 5633)]