25305777

素因数分解:

$3^8\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:79

約数の個数: 72

約数和(自身を含む): 47236800

約数和(自身を除く): 21931023

約数列:

[1, 3, 7, 9, 19, 21, 27, 29, 57, 63, 81, 87, 133, 171, 189, 203, 243, 261, 399, 513, 551, 567, 609, 729, 783, 1197, 1539, 1653, 1701, 1827, 2187, 2349, 3591, 3857, 4617, 4959, 5103, 5481, 6561, 7047, 10773, 11571, 13851, 14877, 15309, 16443, 21141, 32319, 34713, 41553, 44631, 45927, 49329, 63423, 96957, 104139, 124659, 133893, 147987, 190269, 290871, 312417, 401679, 443961, 872613, 937251, 1205037, 1331883, 2811753, 3615111, 8435259, 25305777]

約数ペア:

[(1, 25305777), (3, 8435259), (7, 3615111), (9, 2811753), (19, 1331883), (21, 1205037), (27, 937251), (29, 872613), (57, 443961), (63, 401679), (81, 312417), (87, 290871), (133, 190269), (171, 147987), (189, 133893), (203, 124659), (243, 104139), (261, 96957), (399, 63423), (513, 49329), (551, 45927), (567, 44631), (609, 41553), (729, 34713), (783, 32319), (1197, 21141), (1539, 16443), (1653, 15309), (1701, 14877), (1827, 13851), (2187, 11571), (2349, 10773), (3591, 7047), (3857, 6561), (4617, 5481), (4959, 5103)]