21759998

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{15791}}^1$

素因数の和:15859

約数の個数: 16

約数和(自身を含む): 35816256

約数和(自身を除く): 14056258

約数列:

[1, 2, 13, 26, 53, 106, 689, 1378, 15791, 31582, 205283, 410566, 836923, 1673846, 10879999, 21759998]

約数ペア:

[(1, 21759998), (2, 10879999), (13, 1673846), (26, 836923), (53, 410566), (106, 205283), (689, 31582), (1378, 15791)]