20121678

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{25997}}^1$

素因数の和:26048

約数の個数: 24

約数和(自身を含む): 44612568

約数和(自身を除く): 24490890

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 25997, 51994, 77991, 155982, 233973, 467946, 1117871, 2235742, 3353613, 6707226, 10060839, 20121678]

約数ペア:

[(1, 20121678), (2, 10060839), (3, 6707226), (6, 3353613), (9, 2235742), (18, 1117871), (43, 467946), (86, 233973), (129, 155982), (258, 77991), (387, 51994), (774, 25997)]