21241959

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{11257}}^1$

素因数の和:11314

約数の個数: 16

約数和(自身を含む): 30801888

約数和(自身を除く): 9559929

約数列:

[1, 3, 17, 37, 51, 111, 629, 1887, 11257, 33771, 191369, 416509, 574107, 1249527, 7080653, 21241959]

約数ペア:

[(1, 21241959), (3, 7080653), (17, 1249527), (37, 574107), (51, 416509), (111, 191369), (629, 33771), (1887, 11257)]