20427914

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{409}}^1$

素因数の和:554

約数の個数: 32

約数和(自身を含む): 35335440

約数和(自身を除く): 14907526

約数列:

[1, 2, 13, 17, 26, 34, 113, 221, 226, 409, 442, 818, 1469, 1921, 2938, 3842, 5317, 6953, 10634, 13906, 24973, 46217, 49946, 90389, 92434, 180778, 600821, 785689, 1201642, 1571378, 10213957, 20427914]

約数ペア:

[(1, 20427914), (2, 10213957), (13, 1571378), (17, 1201642), (26, 785689), (34, 600821), (113, 180778), (221, 92434), (226, 90389), (409, 49946), (442, 46217), (818, 24973), (1469, 13906), (1921, 10634), (2938, 6953), (3842, 5317)]