17921986

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{1907}}^1$

素因数の和:2073

約数の個数: 16

約数和(自身を含む): 27841536

約数和(自身を除く): 9919550

約数列:

[1, 2, 37, 74, 127, 254, 1907, 3814, 4699, 9398, 70559, 141118, 242189, 484378, 8960993, 17921986]

約数ペア:

[(1, 17921986), (2, 8960993), (37, 484378), (74, 242189), (127, 141118), (254, 70559), (1907, 9398), (3814, 4699)]