21245666

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{239}}^1\times {\mathrm{263}}^1$

素因数の和:530

約数の個数: 24

約数和(自身を含む): 34784640

約数和(自身を除く): 13538974

約数列:

[1, 2, 13, 26, 169, 239, 263, 338, 478, 526, 3107, 3419, 6214, 6838, 40391, 44447, 62857, 80782, 88894, 125714, 817141, 1634282, 10622833, 21245666]

約数ペア:

[(1, 21245666), (2, 10622833), (13, 1634282), (26, 817141), (169, 125714), (239, 88894), (263, 80782), (338, 62857), (478, 44447), (526, 40391), (3107, 6838), (3419, 6214)]