261640414

素因数分解:

$2^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{53549}}^1$

素因数の和:53907

約数の個数: 16

約数和(自身を含む): 449820000

約数和(自身を除く): 188179586

約数列:

[1, 2, 7, 14, 349, 698, 2443, 4886, 53549, 107098, 374843, 749686, 18688601, 37377202, 130820207, 261640414]

約数ペア:

[(1, 261640414), (2, 130820207), (7, 37377202), (14, 18688601), (349, 749686), (698, 374843), (2443, 107098), (4886, 53549)]