861686

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1009}}^1$

素因数の和:1079

約数の個数: 16

約数和(自身を含む): 1502880

約数和(自身を除く): 641194

約数列:

[1, 2, 7, 14, 61, 122, 427, 854, 1009, 2018, 7063, 14126, 61549, 123098, 430843, 861686]

約数ペア:

[(1, 861686), (2, 430843), (7, 123098), (14, 61549), (61, 14126), (122, 7063), (427, 2018), (854, 1009)]