20464556

素因数分解:

$2^2\times 7^2\times {\mathrm{263}}^1\times {\mathrm{397}}^1$

素因数の和:678

約数の個数: 36

約数和(自身を含む): 41923728

約数和(自身を除く): 21459172

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 263, 397, 526, 794, 1052, 1588, 1841, 2779, 3682, 5558, 7364, 11116, 12887, 19453, 25774, 38906, 51548, 77812, 104411, 208822, 417644, 730877, 1461754, 2923508, 5116139, 10232278, 20464556]

約数ペア:

[(1, 20464556), (2, 10232278), (4, 5116139), (7, 2923508), (14, 1461754), (28, 730877), (49, 417644), (98, 208822), (196, 104411), (263, 77812), (397, 51548), (526, 38906), (794, 25774), (1052, 19453), (1588, 12887), (1841, 11116), (2779, 7364), (3682, 5558)]