20874994

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{21001}}^1$

素因数の和:21081

約数の個数: 16

約数和(自身を含む): 36291456

約数和(自身を除く): 15416462

約数列:

[1, 2, 7, 14, 71, 142, 497, 994, 21001, 42002, 147007, 294014, 1491071, 2982142, 10437497, 20874994]

約数ペア:

[(1, 20874994), (2, 10437497), (7, 2982142), (14, 1491071), (71, 294014), (142, 147007), (497, 42002), (994, 21001)]