21969954

素因数分解:

$2^1\times 3^4\times {\mathrm{135617}}^1$

素因数の和:135631

約数の個数: 20

約数和(自身を含む): 49229334

約数和(自身を除く): 27259380

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 135617, 271234, 406851, 813702, 1220553, 2441106, 3661659, 7323318, 10984977, 21969954]

約数ペア:

[(1, 21969954), (2, 10984977), (3, 7323318), (6, 3661659), (9, 2441106), (18, 1220553), (27, 813702), (54, 406851), (81, 271234), (162, 135617)]