18219370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{521}}^1$

素因数の和:810

約数の個数: 32

約数和(自身を含む): 35516880

約数和(自身を除く): 17297510

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 269, 521, 538, 1042, 1345, 2605, 2690, 3497, 5210, 6773, 6994, 13546, 17485, 33865, 34970, 67730, 140149, 280298, 700745, 1401490, 1821937, 3643874, 9109685, 18219370]

約数ペア:

[(1, 18219370), (2, 9109685), (5, 3643874), (10, 1821937), (13, 1401490), (26, 700745), (65, 280298), (130, 140149), (269, 67730), (521, 34970), (538, 33865), (1042, 17485), (1345, 13546), (2605, 6994), (2690, 6773), (3497, 5210)]