28309528

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{20939}}^1$

素因数の和:20971

約数の個数: 24

約数和(自身を含む): 57480300

約数和(自身を除く): 29170772

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 676, 1352, 20939, 41878, 83756, 167512, 272207, 544414, 1088828, 2177656, 3538691, 7077382, 14154764, 28309528]

約数ペア:

[(1, 28309528), (2, 14154764), (4, 7077382), (8, 3538691), (13, 2177656), (26, 1088828), (52, 544414), (104, 272207), (169, 167512), (338, 83756), (676, 41878), (1352, 20939)]