21153104

素因数分解:

$2^4\times 7^2\times {\mathrm{26981}}^1$

素因数の和:27003

約数の個数: 30

約数和(自身を含む): 47677194

約数和(自身を除く): 26524090

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 26981, 53962, 107924, 188867, 215848, 377734, 431696, 755468, 1322069, 1510936, 2644138, 3021872, 5288276, 10576552, 21153104]

約数ペア:

[(1, 21153104), (2, 10576552), (4, 5288276), (7, 3021872), (8, 2644138), (14, 1510936), (16, 1322069), (28, 755468), (49, 431696), (56, 377734), (98, 215848), (112, 188867), (196, 107924), (392, 53962), (784, 26981)]