19893259085

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{206009}}^1$

素因数の和:206141

約数の個数: 32

約数和(自身を含む): 28478822400

約数和(自身を除く): 8585563315

約数列:

[1, 5, 7, 31, 35, 89, 155, 217, 445, 623, 1085, 2759, 3115, 13795, 19313, 96565, 206009, 1030045, 1442063, 6386279, 7210315, 18334801, 31931395, 44703953, 91674005, 128343607, 223519765, 568378831, 641718035, 2841894155, 3978651817, 19893259085]

約数ペア:

[(1, 19893259085), (5, 3978651817), (7, 2841894155), (31, 641718035), (35, 568378831), (89, 223519765), (155, 128343607), (217, 91674005), (445, 44703953), (623, 31931395), (1085, 18334801), (2759, 7210315), (3115, 6386279), (13795, 1442063), (19313, 1030045), (96565, 206009)]