289345538

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{20641}}^1$

素因数の和:20849

約数の個数: 16

約数和(自身を含む): 446858016

約数和(自身を除く): 157512478

約数列:

[1, 2, 43, 86, 163, 326, 7009, 14018, 20641, 41282, 887563, 1775126, 3364483, 6728966, 144672769, 289345538]

約数ペア:

[(1, 289345538), (2, 144672769), (43, 6728966), (86, 3364483), (163, 1775126), (326, 887563), (7009, 41282), (14018, 20641)]