261342819

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{7331}}^1$

素因数の和:7587

約数の個数: 24

約数和(自身を含む): 401470992

約数和(自身を除く): 140128173

約数列:

[1, 3, 9, 17, 51, 153, 233, 699, 2097, 3961, 7331, 11883, 21993, 35649, 65979, 124627, 373881, 1121643, 1708123, 5124369, 15373107, 29038091, 87114273, 261342819]

約数ペア:

[(1, 261342819), (3, 87114273), (9, 29038091), (17, 15373107), (51, 5124369), (153, 1708123), (233, 1121643), (699, 373881), (2097, 124627), (3961, 65979), (7331, 35649), (11883, 21993)]