21209624

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{139537}}^1$

素因数の和:139562

約数の個数: 16

約数和(自身を含む): 41861400

約数和(自身を除く): 20651776

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 139537, 279074, 558148, 1116296, 2651203, 5302406, 10604812, 21209624]

約数ペア:

[(1, 21209624), (2, 10604812), (4, 5302406), (8, 2651203), (19, 1116296), (38, 558148), (76, 279074), (152, 139537)]