21797072

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{457}}^1$

素因数の和:747

約数の個数: 40

約数和(自身を含む): 46342272

約数和(自身を除く): 24545200

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 271, 457, 542, 914, 1084, 1828, 2168, 2981, 3656, 4336, 5027, 5962, 7312, 10054, 11924, 20108, 23848, 40216, 47696, 80432, 123847, 247694, 495388, 990776, 1362317, 1981552, 2724634, 5449268, 10898536, 21797072]

約数ペア:

[(1, 21797072), (2, 10898536), (4, 5449268), (8, 2724634), (11, 1981552), (16, 1362317), (22, 990776), (44, 495388), (88, 247694), (176, 123847), (271, 80432), (457, 47696), (542, 40216), (914, 23848), (1084, 20108), (1828, 11924), (2168, 10054), (2981, 7312), (3656, 5962), (4336, 5027)]