19784374

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1\times {\mathrm{631}}^1$

素因数の和:951

約数の個数: 16

約数和(自身を含む): 30328416

約数和(自身を除く): 10544042

約数列:

[1, 2, 61, 122, 257, 514, 631, 1262, 15677, 31354, 38491, 76982, 162167, 324334, 9892187, 19784374]

約数ペア:

[(1, 19784374), (2, 9892187), (61, 324334), (122, 162167), (257, 76982), (514, 38491), (631, 31354), (1262, 15677)]