18541772

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{43}}^2\times {\mathrm{109}}^1$

素因数の和:222

約数の個数: 36

約数和(自身を含む): 34982640

約数和(自身を除く): 16440868

約数列:

[1, 2, 4, 23, 43, 46, 86, 92, 109, 172, 218, 436, 989, 1849, 1978, 2507, 3698, 3956, 4687, 5014, 7396, 9374, 10028, 18748, 42527, 85054, 107801, 170108, 201541, 215602, 403082, 431204, 806164, 4635443, 9270886, 18541772]

約数ペア:

[(1, 18541772), (2, 9270886), (4, 4635443), (23, 806164), (43, 431204), (46, 403082), (86, 215602), (92, 201541), (109, 170108), (172, 107801), (218, 85054), (436, 42527), (989, 18748), (1849, 10028), (1978, 9374), (2507, 7396), (3698, 5014), (3956, 4687)]