21125646

素因数分解:

$2^1\times 3^2\times {\mathrm{269}}^1\times {\mathrm{4363}}^1$

素因数の和:4640

約数の個数: 24

約数和(自身を含む): 45952920

約数和(自身を除く): 24827274

約数列:

[1, 2, 3, 6, 9, 18, 269, 538, 807, 1614, 2421, 4363, 4842, 8726, 13089, 26178, 39267, 78534, 1173647, 2347294, 3520941, 7041882, 10562823, 21125646]

約数ペア:

[(1, 21125646), (2, 10562823), (3, 7041882), (6, 3520941), (9, 2347294), (18, 1173647), (269, 78534), (538, 39267), (807, 26178), (1614, 13089), (2421, 8726), (4363, 4842)]