21045984

素因数分解:

$2^5\times 3^1\times {\mathrm{211}}^1\times {\mathrm{1039}}^1$

素因数の和:1263

約数の個数: 48

約数和(自身を含む): 55560960

約数和(自身を除く): 34514976

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 211, 422, 633, 844, 1039, 1266, 1688, 2078, 2532, 3117, 3376, 4156, 5064, 6234, 6752, 8312, 10128, 12468, 16624, 20256, 24936, 33248, 49872, 99744, 219229, 438458, 657687, 876916, 1315374, 1753832, 2630748, 3507664, 5261496, 7015328, 10522992, 21045984]

約数ペア:

[(1, 21045984), (2, 10522992), (3, 7015328), (4, 5261496), (6, 3507664), (8, 2630748), (12, 1753832), (16, 1315374), (24, 876916), (32, 657687), (48, 438458), (96, 219229), (211, 99744), (422, 49872), (633, 33248), (844, 24936), (1039, 20256), (1266, 16624), (1688, 12468), (2078, 10128), (2532, 8312), (3117, 6752), (3376, 6234), (4156, 5064)]