81285813

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41621}}^1$

素因数の和:41665

約数の個数: 24

約数和(自身を含む): 138518016

約数和(自身を除く): 57232203

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 41621, 124863, 291347, 374589, 874041, 1290251, 2622123, 3870753, 9031757, 11612259, 27095271, 81285813]

約数ペア:

[(1, 81285813), (3, 27095271), (7, 11612259), (9, 9031757), (21, 3870753), (31, 2622123), (63, 1290251), (93, 874041), (217, 374589), (279, 291347), (651, 124863), (1953, 41621)]