20444215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{1123}}^1$

素因数の和:1470

約数の個数: 16

約数和(自身を含む): 26868096

約数和(自身を除く): 6423881

約数列:

[1, 5, 11, 55, 331, 1123, 1655, 3641, 5615, 12353, 18205, 61765, 371713, 1858565, 4088843, 20444215]

約数ペア:

[(1, 20444215), (5, 4088843), (11, 1858565), (55, 371713), (331, 61765), (1123, 18205), (1655, 12353), (3641, 5615)]