21469228

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{1193}}^1$

素因数の和:1617

約数の個数: 24

約数和(自身を含む): 41121360

約数和(自身を除く): 19652132

約数列:

[1, 2, 4, 11, 22, 44, 409, 818, 1193, 1636, 2386, 4499, 4772, 8998, 13123, 17996, 26246, 52492, 487937, 975874, 1951748, 5367307, 10734614, 21469228]

約数ペア:

[(1, 21469228), (2, 10734614), (4, 5367307), (11, 1951748), (22, 975874), (44, 487937), (409, 52492), (818, 26246), (1193, 17996), (1636, 13123), (2386, 8998), (4499, 4772)]