21035273

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{3761}}^1$

素因数の和:3832

約数の個数: 16

約数和(自身を含む): 26002944

約数和(自身を除く): 4967671

約数列:

[1, 7, 17, 47, 119, 329, 799, 3761, 5593, 26327, 63937, 176767, 447559, 1237369, 3005039, 21035273]

約数ペア:

[(1, 21035273), (7, 3005039), (17, 1237369), (47, 447559), (119, 176767), (329, 63937), (799, 26327), (3761, 5593)]