21732529

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{313}}^1$

素因数の和:449

約数の個数: 24

約数和(自身を含む): 27562920

約数和(自身を除く): 5830391

約数列:

[1, 7, 13, 49, 91, 109, 313, 637, 763, 1417, 2191, 4069, 5341, 9919, 15337, 28483, 34117, 69433, 199381, 238819, 443521, 1671733, 3104647, 21732529]

約数ペア:

[(1, 21732529), (7, 3104647), (13, 1671733), (49, 443521), (91, 238819), (109, 199381), (313, 69433), (637, 34117), (763, 28483), (1417, 15337), (2191, 9919), (4069, 5341)]