21048381

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{4421}}^1$

素因数の和:4473

約数の個数: 18

約数和(自身を含む): 31789758

約数和(自身を除く): 10741377

約数列:

[1, 3, 9, 23, 69, 207, 529, 1587, 4421, 4761, 13263, 39789, 101683, 305049, 915147, 2338709, 7016127, 21048381]

約数ペア:

[(1, 21048381), (3, 7016127), (9, 2338709), (23, 915147), (69, 305049), (207, 101683), (529, 39789), (1587, 13263), (4421, 4761)]