20199259017

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{349}}^1\times {\mathrm{401}}^1$

素因数の和:871

約数の個数: 96

約数和(自身を含む): 35118720000

約数和(自身を除く): 14919460983

約数列:

[1, 3, 7, 9, 21, 29, 63, 79, 87, 203, 237, 261, 349, 401, 553, 609, 711, 1047, 1203, 1659, 1827, 2291, 2443, 2807, 3141, 3609, 4977, 6873, 7329, 8421, 10121, 11629, 16037, 20619, 21987, 25263, 27571, 30363, 31679, 34887, 48111, 70847, 81403, 82713, 91089, 95037, 104661, 139949, 144333, 192997, 212541, 221753, 244209, 248139, 285111, 419847, 578991, 637623, 665259, 732627, 799559, 918691, 979643, 1259541, 1736973, 1995777, 2398677, 2756073, 2938929, 4058521, 5596913, 6430837, 7196031, 8268219, 8816787, 11055971, 12175563, 16790739, 19292511, 28409647, 33167913, 36526689, 50372217, 57877533, 77391797, 85228941, 99503739, 232175391, 255686823, 320623159, 696526173, 961869477, 2244362113, 2885608431, 6733086339, 20199259017]

約数ペア:

[(1, 20199259017), (3, 6733086339), (7, 2885608431), (9, 2244362113), (21, 961869477), (29, 696526173), (63, 320623159), (79, 255686823), (87, 232175391), (203, 99503739), (237, 85228941), (261, 77391797), (349, 57877533), (401, 50372217), (553, 36526689), (609, 33167913), (711, 28409647), (1047, 19292511), (1203, 16790739), (1659, 12175563), (1827, 11055971), (2291, 8816787), (2443, 8268219), (2807, 7196031), (3141, 6430837), (3609, 5596913), (4977, 4058521), (6873, 2938929), (7329, 2756073), (8421, 2398677), (10121, 1995777), (11629, 1736973), (16037, 1259541), (20619, 979643), (21987, 918691), (25263, 799559), (27571, 732627), (30363, 665259), (31679, 637623), (34887, 578991), (48111, 419847), (70847, 285111), (81403, 248139), (82713, 244209), (91089, 221753), (95037, 212541), (104661, 192997), (139949, 144333)]