21404961

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{307}}^1$

素因数の和:501

約数の個数: 24

約数和(自身を含む): 31775744

約数和(自身を除く): 10370783

約数列:

[1, 3, 9, 61, 127, 183, 307, 381, 549, 921, 1143, 2763, 7747, 18727, 23241, 38989, 56181, 69723, 116967, 168543, 350901, 2378329, 7134987, 21404961]

約数ペア:

[(1, 21404961), (3, 7134987), (9, 2378329), (61, 350901), (127, 168543), (183, 116967), (307, 69723), (381, 56181), (549, 38989), (921, 23241), (1143, 18727), (2763, 7747)]