21660874

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{13903}}^1$

素因数の和:13965

約数の個数: 16

約数和(自身を含む): 35038080

約数和(自身を除く): 13377206

約数列:

[1, 2, 19, 38, 41, 82, 779, 1558, 13903, 27806, 264157, 528314, 570023, 1140046, 10830437, 21660874]

約数ペア:

[(1, 21660874), (2, 10830437), (19, 1140046), (38, 570023), (41, 528314), (82, 264157), (779, 27806), (1558, 13903)]