21709039

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{431}}^1$

素因数の和:702

約数の個数: 16

約数和(自身を含む): 25090560

約数和(自身を除く): 3381521

約数列:

[1, 11, 19, 209, 241, 431, 2651, 4579, 4741, 8189, 50369, 90079, 103871, 1142581, 1973549, 21709039]

約数ペア:

[(1, 21709039), (11, 1973549), (19, 1142581), (209, 103871), (241, 90079), (431, 50369), (2651, 8189), (4579, 4741)]