21904431488

素因数分解:

$2^7\times {\mathrm{171128371}}^1$

素因数の和:171128385

約数の個数: 16

約数和(自身を含む): 43637734860

約数和(自身を除く): 21733303372

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 171128371, 342256742, 684513484, 1369026968, 2738053936, 5476107872, 10952215744, 21904431488]

約数ペア:

[(1, 21904431488), (2, 10952215744), (4, 5476107872), (8, 2738053936), (16, 1369026968), (32, 684513484), (64, 342256742), (128, 171128371)]