21879568

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{33353}}^1$

素因数の和:33402

約数の個数: 20

約数和(自身を含む): 43426908

約数和(自身を除く): 21547340

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 33353, 66706, 133412, 266824, 533648, 1367473, 2734946, 5469892, 10939784, 21879568]

約数ペア:

[(1, 21879568), (2, 10939784), (4, 5469892), (8, 2734946), (16, 1367473), (41, 533648), (82, 266824), (164, 133412), (328, 66706), (656, 33353)]