21603904

素因数分解:

$2^6\times 7^2\times {\mathrm{83}}^2$

素因数の和:192

約数の個数: 63

約数和(自身を含む): 50477547

約数和(自身を除く): 28873643

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 83, 98, 112, 166, 196, 224, 332, 392, 448, 581, 664, 784, 1162, 1328, 1568, 2324, 2656, 3136, 4067, 4648, 5312, 6889, 8134, 9296, 13778, 16268, 18592, 27556, 32536, 37184, 48223, 55112, 65072, 96446, 110224, 130144, 192892, 220448, 260288, 337561, 385784, 440896, 675122, 771568, 1350244, 1543136, 2700488, 3086272, 5400976, 10801952, 21603904]

約数ペア:

[(1, 21603904), (2, 10801952), (4, 5400976), (7, 3086272), (8, 2700488), (14, 1543136), (16, 1350244), (28, 771568), (32, 675122), (49, 440896), (56, 385784), (64, 337561), (83, 260288), (98, 220448), (112, 192892), (166, 130144), (196, 110224), (224, 96446), (332, 65072), (392, 55112), (448, 48223), (581, 37184), (664, 32536), (784, 27556), (1162, 18592), (1328, 16268), (1568, 13778), (2324, 9296), (2656, 8134), (3136, 6889), (4067, 5312)]