21418677

素因数分解:

$3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2677}}^1$

素因数の和:2817

約数の個数: 24

約数和(自身を含む): 35649536

約数和(自身を除く): 14230859

約数列:

[1, 3, 7, 9, 21, 63, 127, 381, 889, 1143, 2667, 2677, 8001, 8031, 18739, 24093, 56217, 168651, 339979, 1019937, 2379853, 3059811, 7139559, 21418677]

約数ペア:

[(1, 21418677), (3, 7139559), (7, 3059811), (9, 2379853), (21, 1019937), (63, 339979), (127, 168651), (381, 56217), (889, 24093), (1143, 18739), (2667, 8031), (2677, 8001)]