21930741

素因数分解:

$3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2741}}^1$

素因数の和:2881

約数の個数: 24

約数和(自身を含む): 36501504

約数和(自身を除く): 14570763

約数列:

[1, 3, 7, 9, 21, 63, 127, 381, 889, 1143, 2667, 2741, 8001, 8223, 19187, 24669, 57561, 172683, 348107, 1044321, 2436749, 3132963, 7310247, 21930741]

約数ペア:

[(1, 21930741), (3, 7310247), (7, 3132963), (9, 2436749), (21, 1044321), (63, 348107), (127, 172683), (381, 57561), (889, 24669), (1143, 19187), (2667, 8223), (2741, 8001)]