2155171444

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{1492501}}^1$

素因数の和:1492543

約数の個数: 18

約数和(自身を含む): 3980502834

約数和(自身を除く): 1825331390

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 1492501, 2985002, 5970004, 28357519, 56715038, 113430076, 538792861, 1077585722, 2155171444]

約数ペア:

[(1, 2155171444), (2, 1077585722), (4, 538792861), (19, 113430076), (38, 56715038), (76, 28357519), (361, 5970004), (722, 2985002), (1444, 1492501)]