21391464

素因数分解:

$2^3\times 3^1\times {\mathrm{891311}}^1$

素因数の和:891320

約数の個数: 16

約数和(自身を含む): 53478720

約数和(自身を除く): 32087256

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 891311, 1782622, 2673933, 3565244, 5347866, 7130488, 10695732, 21391464]

約数ペア:

[(1, 21391464), (2, 10695732), (3, 7130488), (4, 5347866), (6, 3565244), (8, 2673933), (12, 1782622), (24, 891311)]