20515692771

素因数分解:

$3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{937}}^1$

素因数の和:1122

約数の個数: 128

約数和(自身を含む): 37229445120

約数和(自身を除く): 16713752349

約数列:

[1, 3, 7, 9, 21, 27, 31, 37, 63, 93, 101, 111, 189, 217, 259, 279, 303, 333, 651, 707, 777, 837, 909, 937, 999, 1147, 1953, 2121, 2331, 2727, 2811, 3131, 3441, 3737, 5859, 6363, 6559, 6993, 8029, 8433, 9393, 10323, 11211, 19089, 19677, 21917, 24087, 25299, 26159, 28179, 29047, 30969, 33633, 34669, 59031, 65751, 72261, 78477, 84537, 87141, 94637, 100899, 104007, 115847, 177093, 197253, 203329, 216783, 235431, 242683, 261423, 283911, 312021, 347541, 591759, 609987, 662459, 706293, 728049, 784269, 810929, 851733, 936063, 1042623, 1074739, 1829961, 1987377, 2184147, 2432787, 2555199, 2933747, 3127869, 3224217, 3501569, 5489883, 5962131, 6552441, 7298361, 7523173, 8801241, 9672651, 10504707, 17886393, 20536229, 21895083, 22569519, 24510983, 26403723, 29017953, 31514121, 61608687, 67708557, 73532949, 79211169, 94542363, 108548639, 184826061, 203125671, 220598847, 325645917, 554478183, 661796541, 759840473, 976937751, 2279521419, 2930813253, 6838564257, 20515692771]

約数ペア:

[(1, 20515692771), (3, 6838564257), (7, 2930813253), (9, 2279521419), (21, 976937751), (27, 759840473), (31, 661796541), (37, 554478183), (63, 325645917), (93, 220598847), (101, 203125671), (111, 184826061), (189, 108548639), (217, 94542363), (259, 79211169), (279, 73532949), (303, 67708557), (333, 61608687), (651, 31514121), (707, 29017953), (777, 26403723), (837, 24510983), (909, 22569519), (937, 21895083), (999, 20536229), (1147, 17886393), (1953, 10504707), (2121, 9672651), (2331, 8801241), (2727, 7523173), (2811, 7298361), (3131, 6552441), (3441, 5962131), (3737, 5489883), (5859, 3501569), (6363, 3224217), (6559, 3127869), (6993, 2933747), (8029, 2555199), (8433, 2432787), (9393, 2184147), (10323, 1987377), (11211, 1829961), (19089, 1074739), (19677, 1042623), (21917, 936063), (24087, 851733), (25299, 810929), (26159, 784269), (28179, 728049), (29047, 706293), (30969, 662459), (33633, 609987), (34669, 591759), (59031, 347541), (65751, 312021), (72261, 283911), (78477, 261423), (84537, 242683), (87141, 235431), (94637, 216783), (100899, 203329), (104007, 197253), (115847, 177093)]