21939656

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{353}}^1\times {\mathrm{457}}^1$

素因数の和:833

約数の個数: 32

約数和(自身を含む): 43775640

約数和(自身を除く): 21835984

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 353, 457, 706, 914, 1412, 1828, 2824, 3656, 6001, 7769, 12002, 15538, 24004, 31076, 48008, 62152, 161321, 322642, 645284, 1290568, 2742457, 5484914, 10969828, 21939656]

約数ペア:

[(1, 21939656), (2, 10969828), (4, 5484914), (8, 2742457), (17, 1290568), (34, 645284), (68, 322642), (136, 161321), (353, 62152), (457, 48008), (706, 31076), (914, 24004), (1412, 15538), (1828, 12002), (2824, 7769), (3656, 6001)]