21520369

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{577}}^1$

素因数の和:760

約数の個数: 16

約数和(自身を含む): 24599680

約数和(自身を除く): 3079311

約数列:

[1, 13, 19, 151, 247, 577, 1963, 2869, 7501, 10963, 37297, 87127, 142519, 1132651, 1655413, 21520369]

約数ペア:

[(1, 21520369), (13, 1655413), (19, 1132651), (151, 142519), (247, 87127), (577, 37297), (1963, 10963), (2869, 7501)]