20784291

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{1847}}^1$

素因数の和:1903

約数の個数: 24

約数和(自身を含む): 31460352

約数和(自身を除く): 10676061

約数列:

[1, 3, 11, 31, 33, 93, 121, 341, 363, 1023, 1847, 3751, 5541, 11253, 20317, 57257, 60951, 171771, 223487, 629827, 670461, 1889481, 6928097, 20784291]

約数ペア:

[(1, 20784291), (3, 6928097), (11, 1889481), (31, 670461), (33, 629827), (93, 223487), (121, 171771), (341, 60951), (363, 57257), (1023, 20317), (1847, 11253), (3751, 5541)]