18469738

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{42557}}^1$

素因数の和:42597

約数の個数: 16

約数和(自身を含む): 32684544

約数和(自身を除く): 14214806

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 42557, 85114, 297899, 595798, 1319267, 2638534, 9234869, 18469738]

約数ペア:

[(1, 18469738), (2, 9234869), (7, 2638534), (14, 1319267), (31, 595798), (62, 297899), (217, 85114), (434, 42557)]