19973486

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{24781}}^1$

素因数の和:24827

約数の個数: 16

約数和(自身を含む): 33307008

約数和(自身を除く): 13333522

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 24781, 49562, 322153, 644306, 768211, 1536422, 9986743, 19973486]

約数ペア:

[(1, 19973486), (2, 9986743), (13, 1536422), (26, 768211), (31, 644306), (62, 322153), (403, 49562), (806, 24781)]