21991346

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{3539}}^1$

素因数の和:3793

約数の個数: 16

約数和(自身を含む): 35683200

約数和(自身を除く): 13691854

約数列:

[1, 2, 13, 26, 239, 478, 3107, 3539, 6214, 7078, 46007, 92014, 845821, 1691642, 10995673, 21991346]

約数ペア:

[(1, 21991346), (2, 10995673), (13, 1691642), (26, 845821), (239, 92014), (478, 46007), (3107, 7078), (3539, 6214)]