21889842

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{280639}}^1$

素因数の和:280657

約数の個数: 16

約数和(自身を含む): 47147520

約数和(自身を除く): 25257678

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 280639, 561278, 841917, 1683834, 3648307, 7296614, 10944921, 21889842]

約数ペア:

[(1, 21889842), (2, 10944921), (3, 7296614), (6, 3648307), (13, 1683834), (26, 841917), (39, 561278), (78, 280639)]