66938456

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{643639}}^1$

素因数の和:643658

約数の個数: 16

約数和(自身を含む): 135164400

約数和(自身を除く): 68225944

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 643639, 1287278, 2574556, 5149112, 8367307, 16734614, 33469228, 66938456]

約数ペア:

[(1, 66938456), (2, 33469228), (4, 16734614), (8, 8367307), (13, 5149112), (26, 2574556), (52, 1287278), (104, 643639)]