21203247

素因数分解:

$3^1\times {\mathrm{13}}^3\times {\mathrm{3217}}^1$

素因数の和:3259

約数の個数: 16

約数和(自身を含む): 30635360

約数和(自身を除く): 9432113

約数列:

[1, 3, 13, 39, 169, 507, 2197, 3217, 6591, 9651, 41821, 125463, 543673, 1631019, 7067749, 21203247]

約数ペア:

[(1, 21203247), (3, 7067749), (13, 1631019), (39, 543673), (169, 125463), (507, 41821), (2197, 9651), (3217, 6591)]