1215205821

素因数分解:

$3^6\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1223}}^1$

素因数の和:1317

約数の個数: 56

約数和(自身を含む): 1926478080

約数和(自身を除く): 711272259

約数列:

[1, 3, 9, 27, 29, 47, 81, 87, 141, 243, 261, 423, 729, 783, 1223, 1269, 1363, 2349, 3669, 3807, 4089, 7047, 11007, 11421, 12267, 21141, 33021, 34263, 35467, 36801, 57481, 99063, 106401, 110403, 172443, 297189, 319203, 331209, 517329, 891567, 957609, 993627, 1551987, 1666949, 2872827, 4655961, 5000847, 8618481, 13967883, 15002541, 25855443, 41903649, 45007623, 135022869, 405068607, 1215205821]

約数ペア:

[(1, 1215205821), (3, 405068607), (9, 135022869), (27, 45007623), (29, 41903649), (47, 25855443), (81, 15002541), (87, 13967883), (141, 8618481), (243, 5000847), (261, 4655961), (423, 2872827), (729, 1666949), (783, 1551987), (1223, 993627), (1269, 957609), (1363, 891567), (2349, 517329), (3669, 331209), (3807, 319203), (4089, 297189), (7047, 172443), (11007, 110403), (11421, 106401), (12267, 99063), (21141, 57481), (33021, 36801), (34263, 35467)]