20216895

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{463}}^1$

素因数の和:583

約数の個数: 32

約数和(自身を含む): 33675264

約数和(自身を除く): 13458369

約数列:

[1, 3, 5, 15, 41, 71, 123, 205, 213, 355, 463, 615, 1065, 1389, 2315, 2911, 6945, 8733, 14555, 18983, 32873, 43665, 56949, 94915, 98619, 164365, 284745, 493095, 1347793, 4043379, 6738965, 20216895]

約数ペア:

[(1, 20216895), (3, 6738965), (5, 4043379), (15, 1347793), (41, 493095), (71, 284745), (123, 164365), (205, 98619), (213, 94915), (355, 56949), (463, 43665), (615, 32873), (1065, 18983), (1389, 14555), (2315, 8733), (2911, 6945)]