21986547

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{1637}}^1$

素因数の和:1699

約数の個数: 24

約数和(自身を含む): 33113808

約数和(自身を除く): 11127261

約数列:

[1, 3, 11, 33, 37, 111, 121, 363, 407, 1221, 1637, 4477, 4911, 13431, 18007, 54021, 60569, 181707, 198077, 594231, 666259, 1998777, 7328849, 21986547]

約数ペア:

[(1, 21986547), (3, 7328849), (11, 1998777), (33, 666259), (37, 594231), (111, 198077), (121, 181707), (363, 60569), (407, 54021), (1221, 18007), (1637, 13431), (4477, 4911)]