20771205

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15217}}^1$

素因数の和:15245

約数の個数: 32

約数和(自身を含む): 40905984

約数和(自身を除く): 20134779

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 15217, 45651, 76085, 106519, 197821, 228255, 319557, 532595, 593463, 989105, 1384747, 1597785, 2967315, 4154241, 6923735, 20771205]

約数ペア:

[(1, 20771205), (3, 6923735), (5, 4154241), (7, 2967315), (13, 1597785), (15, 1384747), (21, 989105), (35, 593463), (39, 532595), (65, 319557), (91, 228255), (105, 197821), (195, 106519), (273, 76085), (455, 45651), (1365, 15217)]