261633778

素因数分解:

$2^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{78193}}^1$

素因数の和:78441

約数の個数: 16

約数和(自身を含む): 450397440

約数和(自身を除く): 188763662

約数列:

[1, 2, 7, 14, 239, 478, 1673, 3346, 78193, 156386, 547351, 1094702, 18688127, 37376254, 130816889, 261633778]

約数ペア:

[(1, 261633778), (2, 130816889), (7, 37376254), (14, 18688127), (239, 1094702), (478, 547351), (1673, 156386), (3346, 78193)]