20854444

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{761}}^1$

素因数の和:826

約数の個数: 48

約数和(自身を含む): 43013376

約数和(自身を除く): 22158932

約数列:

[1, 2, 4, 13, 17, 26, 31, 34, 52, 62, 68, 124, 221, 403, 442, 527, 761, 806, 884, 1054, 1522, 1612, 2108, 3044, 6851, 9893, 12937, 13702, 19786, 23591, 25874, 27404, 39572, 47182, 51748, 94364, 168181, 306683, 336362, 401047, 613366, 672724, 802094, 1226732, 1604188, 5213611, 10427222, 20854444]

約数ペア:

[(1, 20854444), (2, 10427222), (4, 5213611), (13, 1604188), (17, 1226732), (26, 802094), (31, 672724), (34, 613366), (52, 401047), (62, 336362), (68, 306683), (124, 168181), (221, 94364), (403, 51748), (442, 47182), (527, 39572), (761, 27404), (806, 25874), (884, 23591), (1054, 19786), (1522, 13702), (1612, 12937), (2108, 9893), (3044, 6851)]