18721622

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1\times {\mathrm{547}}^1$

素因数の和:815

約数の個数: 16

約数和(自身を含む): 28572720

約数和(自身を除く): 9851098

約数列:

[1, 2, 109, 157, 218, 314, 547, 1094, 17113, 34226, 59623, 85879, 119246, 171758, 9360811, 18721622]

約数ペア:

[(1, 18721622), (2, 9360811), (109, 171758), (157, 119246), (218, 85879), (314, 59623), (547, 34226), (1094, 17113)]