21816389

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{9649}}^1$

素因数の和:9692

約数の個数: 16

約数和(自身を含む): 27792000

約数和(自身を除く): 5975611

約数列:

[1, 7, 17, 19, 119, 133, 323, 2261, 9649, 67543, 164033, 183331, 1148231, 1283317, 3116627, 21816389]

約数ペア:

[(1, 21816389), (7, 3116627), (17, 1283317), (19, 1148231), (119, 183331), (133, 164033), (323, 67543), (2261, 9649)]