19376188

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{28663}}^1$

素因数の和:28693

約数の個数: 18

約数和(自身を含む): 36718584

約数和(自身を除く): 17342396

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 28663, 57326, 114652, 372619, 745238, 1490476, 4844047, 9688094, 19376188]

約数ペア:

[(1, 19376188), (2, 9688094), (4, 4844047), (13, 1490476), (26, 745238), (52, 372619), (169, 114652), (338, 57326), (676, 28663)]