388142013

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{972787}}^1$

素因数の和:972816

約数の個数: 16

約数和(自身を含む): 622584320

約数和(自身を除く): 234442307

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 972787, 2918361, 6809509, 18482953, 20428527, 55448859, 129380671, 388142013]

約数ペア:

[(1, 388142013), (3, 129380671), (7, 55448859), (19, 20428527), (21, 18482953), (57, 6809509), (133, 2918361), (399, 972787)]