18958378

素因数分解:

$2^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1\times {\mathrm{349}}^1$

素因数の和:681

約数の個数: 16

約数和(自身を含む): 28866600

約数和(自身を除く): 9908222

約数列:

[1, 2, 157, 173, 314, 346, 349, 698, 27161, 54322, 54793, 60377, 109586, 120754, 9479189, 18958378]

約数ペア:

[(1, 18958378), (2, 9479189), (157, 120754), (173, 109586), (314, 60377), (346, 54793), (349, 54322), (698, 27161)]