21333741

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{223}}^2$

素因数の和:473

約数の個数: 24

約数和(自身を含む): 33568416

約数和(自身を除く): 12234675

約数列:

[1, 3, 11, 13, 33, 39, 143, 223, 429, 669, 2453, 2899, 7359, 8697, 31889, 49729, 95667, 149187, 547019, 646477, 1641057, 1939431, 7111247, 21333741]

約数ペア:

[(1, 21333741), (3, 7111247), (11, 1939431), (13, 1641057), (33, 646477), (39, 547019), (143, 149187), (223, 95667), (429, 49729), (669, 31889), (2453, 8697), (2899, 7359)]