21804651

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{857}}^1$

素因数の和:1131

約数の個数: 24

約数和(自身を含む): 34532784

約数和(自身を除く): 12728133

約数列:

[1, 3, 9, 11, 33, 99, 257, 771, 857, 2313, 2571, 2827, 7713, 8481, 9427, 25443, 28281, 84843, 220249, 660747, 1982241, 2422739, 7268217, 21804651]

約数ペア:

[(1, 21804651), (3, 7268217), (9, 2422739), (11, 1982241), (33, 660747), (99, 220249), (257, 84843), (771, 28281), (857, 25443), (2313, 9427), (2571, 8481), (2827, 7713)]