21148941

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{17321}}^1$

素因数の和:17372

約数の個数: 16

約数和(自身を含む): 31595328

約数和(自身を除く): 10446387

約数列:

[1, 3, 11, 33, 37, 111, 407, 1221, 17321, 51963, 190531, 571593, 640877, 1922631, 7049647, 21148941]

約数ペア:

[(1, 21148941), (3, 7049647), (11, 1922631), (33, 640877), (37, 571593), (111, 190531), (407, 51963), (1221, 17321)]