18891370

素因数分解:

$2^1\times 5^1\times {\mathrm{349}}^1\times {\mathrm{5413}}^1$

素因数の和:5769

約数の個数: 16

約数和(自身を含む): 34108200

約数和(自身を除く): 15216830

約数列:

[1, 2, 5, 10, 349, 698, 1745, 3490, 5413, 10826, 27065, 54130, 1889137, 3778274, 9445685, 18891370]

約数ペア:

[(1, 18891370), (2, 9445685), (5, 3778274), (10, 1889137), (349, 54130), (698, 27065), (1745, 10826), (3490, 5413)]