18837874

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{631}}^1$

素因数の和:726

約数の個数: 32

約数和(自身を含む): 32762880

約数和(自身を除く): 13925006

約数列:

[1, 2, 11, 22, 23, 46, 59, 118, 253, 506, 631, 649, 1262, 1298, 1357, 2714, 6941, 13882, 14513, 14927, 29026, 29854, 37229, 74458, 159643, 319286, 409519, 819038, 856267, 1712534, 9418937, 18837874]

約数ペア:

[(1, 18837874), (2, 9418937), (11, 1712534), (22, 856267), (23, 819038), (46, 409519), (59, 319286), (118, 159643), (253, 74458), (506, 37229), (631, 29854), (649, 29026), (1262, 14927), (1298, 14513), (1357, 13882), (2714, 6941)]