20172556719

素因数分解:

$3^2\times 7^2\times {\mathrm{59}}^1\times {\mathrm{313}}^1\times {\mathrm{2477}}^1$

素因数の和:2869

約数の個数: 72

約数和(自身を含む): 34593970320

約数和(自身を除く): 14421413601

約数列:

[1, 3, 7, 9, 21, 49, 59, 63, 147, 177, 313, 413, 441, 531, 939, 1239, 2191, 2477, 2817, 2891, 3717, 6573, 7431, 8673, 15337, 17339, 18467, 19719, 22293, 26019, 46011, 52017, 55401, 121373, 129269, 138033, 146143, 156051, 166203, 364119, 387807, 438429, 775301, 904883, 1023001, 1092357, 1163421, 1315287, 2325903, 2714649, 3069003, 5427107, 6977709, 7161007, 8143947, 9207009, 16281321, 21483021, 37989749, 45742759, 48843963, 64449063, 113969247, 137228277, 320199313, 341907741, 411684831, 960597939, 2241395191, 2881793817, 6724185573, 20172556719]

約数ペア:

[(1, 20172556719), (3, 6724185573), (7, 2881793817), (9, 2241395191), (21, 960597939), (49, 411684831), (59, 341907741), (63, 320199313), (147, 137228277), (177, 113969247), (313, 64449063), (413, 48843963), (441, 45742759), (531, 37989749), (939, 21483021), (1239, 16281321), (2191, 9207009), (2477, 8143947), (2817, 7161007), (2891, 6977709), (3717, 5427107), (6573, 3069003), (7431, 2714649), (8673, 2325903), (15337, 1315287), (17339, 1163421), (18467, 1092357), (19719, 1023001), (22293, 904883), (26019, 775301), (46011, 438429), (52017, 387807), (55401, 364119), (121373, 166203), (129269, 156051), (138033, 146143)]