19639828

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1709}}^1$

素因数の和:1756

約数の個数: 36

約数和(自身を含む): 39429180

約数和(自身を除く): 19789352

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 169, 221, 338, 442, 676, 884, 1709, 2873, 3418, 5746, 6836, 11492, 22217, 29053, 44434, 58106, 88868, 116212, 288821, 377689, 577642, 755378, 1155284, 1510756, 4909957, 9819914, 19639828]

約数ペア:

[(1, 19639828), (2, 9819914), (4, 4909957), (13, 1510756), (17, 1155284), (26, 755378), (34, 577642), (52, 377689), (68, 288821), (169, 116212), (221, 88868), (338, 58106), (442, 44434), (676, 29053), (884, 22217), (1709, 11492), (2873, 6836), (3418, 5746)]