20985344

素因数分解:

$2^9\times {\mathrm{17}}^1\times {\mathrm{2411}}^1$

素因数の和:2446

約数の個数: 40

約数和(自身を含む): 44414568

約数和(自身を除く): 23429224

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 512, 544, 1088, 2176, 2411, 4352, 4822, 8704, 9644, 19288, 38576, 40987, 77152, 81974, 154304, 163948, 308608, 327896, 617216, 655792, 1234432, 1311584, 2623168, 5246336, 10492672, 20985344]

約数ペア:

[(1, 20985344), (2, 10492672), (4, 5246336), (8, 2623168), (16, 1311584), (17, 1234432), (32, 655792), (34, 617216), (64, 327896), (68, 308608), (128, 163948), (136, 154304), (256, 81974), (272, 77152), (512, 40987), (544, 38576), (1088, 19288), (2176, 9644), (2411, 8704), (4352, 4822)]