20946872

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{389}}^1$

素因数の和:575

約数の個数: 32

約数和(自身を含む): 40435200

約数和(自身を除く): 19488328

約数列:

[1, 2, 4, 8, 53, 106, 127, 212, 254, 389, 424, 508, 778, 1016, 1556, 3112, 6731, 13462, 20617, 26924, 41234, 49403, 53848, 82468, 98806, 164936, 197612, 395224, 2618359, 5236718, 10473436, 20946872]

約数ペア:

[(1, 20946872), (2, 10473436), (4, 5236718), (8, 2618359), (53, 395224), (106, 197612), (127, 164936), (212, 98806), (254, 82468), (389, 53848), (424, 49403), (508, 41234), (778, 26924), (1016, 20617), (1556, 13462), (3112, 6731)]