20998544

素因数分解:

$2^4\times 7^1\times {\mathrm{313}}^1\times {\mathrm{599}}^1$

素因数の和:927

約数の個数: 40

約数和(自身を含む): 46723200

約数和(自身を除く): 25724656

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 313, 599, 626, 1198, 1252, 2191, 2396, 2504, 4193, 4382, 4792, 5008, 8386, 8764, 9584, 16772, 17528, 33544, 35056, 67088, 187487, 374974, 749948, 1312409, 1499896, 2624818, 2999792, 5249636, 10499272, 20998544]

約数ペア:

[(1, 20998544), (2, 10499272), (4, 5249636), (7, 2999792), (8, 2624818), (14, 1499896), (16, 1312409), (28, 749948), (56, 374974), (112, 187487), (313, 67088), (599, 35056), (626, 33544), (1198, 17528), (1252, 16772), (2191, 9584), (2396, 8764), (2504, 8386), (4193, 5008), (4382, 4792)]