21557232

素因数分解:

$2^4\times 3^3\times {\mathrm{139}}^1\times {\mathrm{359}}^1$

素因数の和:515

約数の個数: 80

約数和(自身を含む): 62496000

約数和(自身を除く): 40938768

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 139, 144, 216, 278, 359, 417, 432, 556, 718, 834, 1077, 1112, 1251, 1436, 1668, 2154, 2224, 2502, 2872, 3231, 3336, 3753, 4308, 5004, 5744, 6462, 6672, 7506, 8616, 9693, 10008, 12924, 15012, 17232, 19386, 20016, 25848, 30024, 38772, 49901, 51696, 60048, 77544, 99802, 149703, 155088, 199604, 299406, 399208, 449109, 598812, 798416, 898218, 1197624, 1347327, 1796436, 2395248, 2694654, 3592872, 5389308, 7185744, 10778616, 21557232]

約数ペア:

[(1, 21557232), (2, 10778616), (3, 7185744), (4, 5389308), (6, 3592872), (8, 2694654), (9, 2395248), (12, 1796436), (16, 1347327), (18, 1197624), (24, 898218), (27, 798416), (36, 598812), (48, 449109), (54, 399208), (72, 299406), (108, 199604), (139, 155088), (144, 149703), (216, 99802), (278, 77544), (359, 60048), (417, 51696), (432, 49901), (556, 38772), (718, 30024), (834, 25848), (1077, 20016), (1112, 19386), (1251, 17232), (1436, 15012), (1668, 12924), (2154, 10008), (2224, 9693), (2502, 8616), (2872, 7506), (3231, 6672), (3336, 6462), (3753, 5744), (4308, 5004)]