21382426

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{263}}^1$

素因数の和:390

約数の個数: 32

約数和(自身を含む): 35925120

約数和(自身を除く): 14542694

約数列:

[1, 2, 13, 26, 53, 59, 106, 118, 263, 526, 689, 767, 1378, 1534, 3127, 3419, 6254, 6838, 13939, 15517, 27878, 31034, 40651, 81302, 181207, 201721, 362414, 403442, 822401, 1644802, 10691213, 21382426]

約数ペア:

[(1, 21382426), (2, 10691213), (13, 1644802), (26, 822401), (53, 403442), (59, 362414), (106, 201721), (118, 181207), (263, 81302), (526, 40651), (689, 31034), (767, 27878), (1378, 15517), (1534, 13939), (3127, 6838), (3419, 6254)]