21904388

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{167}}^1\times {\mathrm{271}}^1$

素因数の和:464

約数の個数: 36

約数和(自身を含む): 42542976

約数和(自身を除く): 20638588

約数列:

[1, 2, 4, 11, 22, 44, 121, 167, 242, 271, 334, 484, 542, 668, 1084, 1837, 2981, 3674, 5962, 7348, 11924, 20207, 32791, 40414, 45257, 65582, 80828, 90514, 131164, 181028, 497827, 995654, 1991308, 5476097, 10952194, 21904388]

約数ペア:

[(1, 21904388), (2, 10952194), (4, 5476097), (11, 1991308), (22, 995654), (44, 497827), (121, 181028), (167, 131164), (242, 90514), (271, 80828), (334, 65582), (484, 45257), (542, 40414), (668, 32791), (1084, 20207), (1837, 11924), (2981, 7348), (3674, 5962)]