21792976

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{239}}^1$

素因数の和:427

約数の個数: 40

約数和(自身を含む): 43747200

約数和(自身を除く): 21954224

約数列:

[1, 2, 4, 8, 16, 41, 82, 139, 164, 239, 278, 328, 478, 556, 656, 956, 1112, 1912, 2224, 3824, 5699, 9799, 11398, 19598, 22796, 33221, 39196, 45592, 66442, 78392, 91184, 132884, 156784, 265768, 531536, 1362061, 2724122, 5448244, 10896488, 21792976]

約数ペア:

[(1, 21792976), (2, 10896488), (4, 5448244), (8, 2724122), (16, 1362061), (41, 531536), (82, 265768), (139, 156784), (164, 132884), (239, 91184), (278, 78392), (328, 66442), (478, 45592), (556, 39196), (656, 33221), (956, 22796), (1112, 19598), (1912, 11398), (2224, 9799), (3824, 5699)]