20287828

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{167}}^1\times {\mathrm{251}}^1$

素因数の和:444

約数の個数: 36

約数和(自身を含む): 39414816

約数和(自身を除く): 19126988

約数列:

[1, 2, 4, 11, 22, 44, 121, 167, 242, 251, 334, 484, 502, 668, 1004, 1837, 2761, 3674, 5522, 7348, 11044, 20207, 30371, 40414, 41917, 60742, 80828, 83834, 121484, 167668, 461087, 922174, 1844348, 5071957, 10143914, 20287828]

約数ペア:

[(1, 20287828), (2, 10143914), (4, 5071957), (11, 1844348), (22, 922174), (44, 461087), (121, 167668), (167, 121484), (242, 83834), (251, 80828), (334, 60742), (484, 41917), (502, 40414), (668, 30371), (1004, 20207), (1837, 11044), (2761, 7348), (3674, 5522)]