891561567

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{20393}}^1$

素因数の和:20487

約数の個数: 32

約数和(自身を含む): 1370476800

約数和(自身を除く): 478915233

約数列:

[1, 3, 13, 19, 39, 57, 59, 177, 247, 741, 767, 1121, 2301, 3363, 14573, 20393, 43719, 61179, 265109, 387467, 795327, 1162401, 1203187, 3609561, 5037071, 15111213, 15641431, 22860553, 46924293, 68581659, 297187189, 891561567]

約数ペア:

[(1, 891561567), (3, 297187189), (13, 68581659), (19, 46924293), (39, 22860553), (57, 15641431), (59, 15111213), (177, 5037071), (247, 3609561), (741, 1203187), (767, 1162401), (1121, 795327), (2301, 387467), (3363, 265109), (14573, 61179), (20393, 43719)]