28485964

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{42139}}^1$

素因数の和:42169

約数の個数: 18

約数和(自身を含む): 53981340

約数和(自身を除く): 25495376

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 42139, 84278, 168556, 547807, 1095614, 2191228, 7121491, 14242982, 28485964]

約数ペア:

[(1, 28485964), (2, 14242982), (4, 7121491), (13, 2191228), (26, 1095614), (52, 547807), (169, 168556), (338, 84278), (676, 42139)]