20617936

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{313}}^1$

素因数の和:523

約数の個数: 40

約数和(自身を含む): 42050880

約数和(自身を除く): 21432944

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 179, 184, 313, 358, 368, 626, 716, 1252, 1432, 2504, 2864, 4117, 5008, 7199, 8234, 14398, 16468, 28796, 32936, 56027, 57592, 65872, 112054, 115184, 224108, 448216, 896432, 1288621, 2577242, 5154484, 10308968, 20617936]

約数ペア:

[(1, 20617936), (2, 10308968), (4, 5154484), (8, 2577242), (16, 1288621), (23, 896432), (46, 448216), (92, 224108), (179, 115184), (184, 112054), (313, 65872), (358, 57592), (368, 56027), (626, 32936), (716, 28796), (1252, 16468), (1432, 14398), (2504, 8234), (2864, 7199), (4117, 5008)]