19873669205

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2801}}^1\times {\mathrm{6421}}^1$

素因数の和:9257

約数の個数: 32

約数和(自身を含む): 27207599328

約数和(自身を除く): 7333930123

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 2801, 6421, 14005, 32105, 36413, 47617, 83473, 109157, 182065, 238085, 417365, 545785, 619021, 1419041, 3095105, 7095205, 17985221, 89926105, 233807873, 305748757, 1169039365, 1528743785, 3974733841, 19873669205]

約数ペア:

[(1, 19873669205), (5, 3974733841), (13, 1528743785), (17, 1169039365), (65, 305748757), (85, 233807873), (221, 89926105), (1105, 17985221), (2801, 7095205), (6421, 3095105), (14005, 1419041), (32105, 619021), (36413, 545785), (47617, 417365), (83473, 238085), (109157, 182065)]