18920727

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{8117}}^1$

素因数の和:8167

約数の個数: 24

約数和(自身を含む): 32082336

約数和(自身を除く): 13161609

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 777, 2331, 8117, 24351, 56819, 73053, 170457, 300329, 511371, 900987, 2102303, 2702961, 6306909, 18920727]

約数ペア:

[(1, 18920727), (3, 6306909), (7, 2702961), (9, 2102303), (21, 900987), (37, 511371), (63, 300329), (111, 170457), (259, 73053), (333, 56819), (777, 24351), (2331, 8117)]