2128988

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:389

約数の個数: 24

約数和(自身を含む): 3973200

約数和(自身を除く): 1844212

約数列:

[1, 2, 4, 19, 38, 76, 109, 218, 257, 436, 514, 1028, 2071, 4142, 4883, 8284, 9766, 19532, 28013, 56026, 112052, 532247, 1064494, 2128988]

約数ペア:

[(1, 2128988), (2, 1064494), (4, 532247), (19, 112052), (38, 56026), (76, 28013), (109, 19532), (218, 9766), (257, 8284), (436, 4883), (514, 4142), (1028, 2071)]