18530864

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{499}}^1$

素因数の和:729

約数の個数: 40

約数和(自身を含む): 39432000

約数和(自身を除く): 20901136

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 211, 422, 499, 844, 998, 1688, 1996, 2321, 3376, 3992, 4642, 5489, 7984, 9284, 10978, 18568, 21956, 37136, 43912, 87824, 105289, 210578, 421156, 842312, 1158179, 1684624, 2316358, 4632716, 9265432, 18530864]

約数ペア:

[(1, 18530864), (2, 9265432), (4, 4632716), (8, 2316358), (11, 1684624), (16, 1158179), (22, 842312), (44, 421156), (88, 210578), (176, 105289), (211, 87824), (422, 43912), (499, 37136), (844, 21956), (998, 18568), (1688, 10978), (1996, 9284), (2321, 7984), (3376, 5489), (3992, 4642)]