19392585

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:349

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 12540855

約数列:

[1, 3, 5, 15, 71, 131, 139, 213, 355, 393, 417, 655, 695, 1065, 1965, 2085, 9301, 9869, 18209, 27903, 29607, 46505, 49345, 54627, 91045, 139515, 148035, 273135, 1292839, 3878517, 6464195, 19392585]

約数ペア:

[(1, 19392585), (3, 6464195), (5, 3878517), (15, 1292839), (71, 273135), (131, 148035), (139, 139515), (213, 91045), (355, 54627), (393, 49345), (417, 46505), (655, 29607), (695, 27903), (1065, 18209), (1965, 9869), (2085, 9301)]