19940998

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4177}}^1$

素因数の和:4228

約数の個数: 32

約数和(自身を含む): 38504448

約数和(自身を除く): 18563450

約数列:

[1, 2, 7, 11, 14, 22, 31, 62, 77, 154, 217, 341, 434, 682, 2387, 4177, 4774, 8354, 29239, 45947, 58478, 91894, 129487, 258974, 321629, 643258, 906409, 1424357, 1812818, 2848714, 9970499, 19940998]

約数ペア:

[(1, 19940998), (2, 9970499), (7, 2848714), (11, 1812818), (14, 1424357), (22, 906409), (31, 643258), (62, 321629), (77, 258974), (154, 129487), (217, 91894), (341, 58478), (434, 45947), (682, 29239), (2387, 8354), (4177, 4774)]