21031873

素因数分解:

${\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1153}}^1$

素因数の和:1236

約数の個数: 16

約数和(自身を含む): 23680080

約数和(自身を除く): 2648207

約数列:

[1, 17, 29, 37, 493, 629, 1073, 1153, 18241, 19601, 33437, 42661, 568429, 725237, 1237169, 21031873]

約数ペア:

[(1, 21031873), (17, 1237169), (29, 725237), (37, 568429), (493, 42661), (629, 33437), (1073, 19601), (1153, 18241)]