291213364

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{430789}}^1$

素因数の和:430819

約数の個数: 18

約数和(自身を含む): 551841990

約数和(自身を除く): 260628626

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 430789, 861578, 1723156, 5600257, 11200514, 22401028, 72803341, 145606682, 291213364]

約数ペア:

[(1, 291213364), (2, 145606682), (4, 72803341), (13, 22401028), (26, 11200514), (52, 5600257), (169, 1723156), (338, 861578), (676, 430789)]