20945224

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{337}}^1\times {\mathrm{457}}^1$

素因数の和:817

約数の個数: 32

約数和(自身を含む): 41797080

約数和(自身を除く): 20851856

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 337, 457, 674, 914, 1348, 1828, 2696, 3656, 5729, 7769, 11458, 15538, 22916, 31076, 45832, 62152, 154009, 308018, 616036, 1232072, 2618153, 5236306, 10472612, 20945224]

約数ペア:

[(1, 20945224), (2, 10472612), (4, 5236306), (8, 2618153), (17, 1232072), (34, 616036), (68, 308018), (136, 154009), (337, 62152), (457, 45832), (674, 31076), (914, 22916), (1348, 15538), (1828, 11458), (2696, 7769), (3656, 5729)]