21699090

素因数分解:

$2^1\times 3^4\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:158

約数の個数: 160

約数和(自身を含む): 68999040

約数和(自身を除く): 47299950

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 43, 45, 54, 63, 70, 81, 86, 89, 90, 105, 126, 129, 135, 162, 178, 189, 210, 215, 258, 267, 270, 301, 315, 378, 387, 405, 430, 445, 534, 567, 602, 623, 630, 645, 774, 801, 810, 890, 903, 945, 1134, 1161, 1246, 1290, 1335, 1505, 1602, 1806, 1869, 1890, 1935, 2322, 2403, 2670, 2709, 2835, 3010, 3115, 3483, 3738, 3827, 3870, 4005, 4515, 4806, 5418, 5607, 5670, 5805, 6230, 6966, 7209, 7654, 8010, 8127, 9030, 9345, 11214, 11481, 11610, 12015, 13545, 14418, 16254, 16821, 17415, 18690, 19135, 22962, 24030, 24381, 26789, 27090, 28035, 33642, 34443, 34830, 36045, 38270, 40635, 48762, 50463, 53578, 56070, 57405, 68886, 72090, 80367, 81270, 84105, 100926, 103329, 114810, 121905, 133945, 160734, 168210, 172215, 206658, 241101, 243810, 252315, 267890, 309987, 344430, 401835, 482202, 504630, 516645, 619974, 723303, 803670, 1033290, 1205505, 1446606, 1549935, 2169909, 2411010, 3099870, 3616515, 4339818, 7233030, 10849545, 21699090]

約数ペア:

[(1, 21699090), (2, 10849545), (3, 7233030), (5, 4339818), (6, 3616515), (7, 3099870), (9, 2411010), (10, 2169909), (14, 1549935), (15, 1446606), (18, 1205505), (21, 1033290), (27, 803670), (30, 723303), (35, 619974), (42, 516645), (43, 504630), (45, 482202), (54, 401835), (63, 344430), (70, 309987), (81, 267890), (86, 252315), (89, 243810), (90, 241101), (105, 206658), (126, 172215), (129, 168210), (135, 160734), (162, 133945), (178, 121905), (189, 114810), (210, 103329), (215, 100926), (258, 84105), (267, 81270), (270, 80367), (301, 72090), (315, 68886), (378, 57405), (387, 56070), (405, 53578), (430, 50463), (445, 48762), (534, 40635), (567, 38270), (602, 36045), (623, 34830), (630, 34443), (645, 33642), (774, 28035), (801, 27090), (810, 26789), (890, 24381), (903, 24030), (945, 22962), (1134, 19135), (1161, 18690), (1246, 17415), (1290, 16821), (1335, 16254), (1505, 14418), (1602, 13545), (1806, 12015), (1869, 11610), (1890, 11481), (1935, 11214), (2322, 9345), (2403, 9030), (2670, 8127), (2709, 8010), (2835, 7654), (3010, 7209), (3115, 6966), (3483, 6230), (3738, 5805), (3827, 5670), (3870, 5607), (4005, 5418), (4515, 4806)]