21412588

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{18523}}^1$

素因数の和:18561

約数の個数: 18

約数和(自身を含む): 39808076

約数和(自身を除く): 18395488

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 18523, 37046, 74092, 314891, 629782, 1259564, 5353147, 10706294, 21412588]

約数ペア:

[(1, 21412588), (2, 10706294), (4, 5353147), (17, 1259564), (34, 629782), (68, 314891), (289, 74092), (578, 37046), (1156, 18523)]