19809615

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{5099}}^1$

素因数の和:5151

約数の個数: 32

約数和(自身を含む): 37209600

約数和(自身を除く): 17399985

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 105, 111, 185, 259, 555, 777, 1295, 3885, 5099, 15297, 25495, 35693, 76485, 107079, 178465, 188663, 535395, 565989, 943315, 1320641, 2829945, 3961923, 6603205, 19809615]

約数ペア:

[(1, 19809615), (3, 6603205), (5, 3961923), (7, 2829945), (15, 1320641), (21, 943315), (35, 565989), (37, 535395), (105, 188663), (111, 178465), (185, 107079), (259, 76485), (555, 35693), (777, 25495), (1295, 15297), (3885, 5099)]