21186539

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:203

約数の個数: 32

約数和(自身を含む): 26438400

約数和(自身を除く): 5251861

約数列:

[1, 11, 17, 19, 67, 89, 187, 209, 323, 737, 979, 1139, 1273, 1513, 1691, 3553, 5963, 12529, 14003, 16643, 18601, 21641, 28747, 65593, 101371, 113297, 238051, 316217, 1115081, 1246267, 1926049, 21186539]

約数ペア:

[(1, 21186539), (11, 1926049), (17, 1246267), (19, 1115081), (67, 316217), (89, 238051), (187, 113297), (209, 101371), (323, 65593), (737, 28747), (979, 21641), (1139, 18601), (1273, 16643), (1513, 14003), (1691, 12529), (3553, 5963)]