20813982

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{495571}}^1$

素因数の和:495583

約数の個数: 16

約数和(自身を含む): 47574912

約数和(自身を除く): 26760930

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 495571, 991142, 1486713, 2973426, 3468997, 6937994, 10406991, 20813982]

約数ペア:

[(1, 20813982), (2, 10406991), (3, 6937994), (6, 3468997), (7, 2973426), (14, 1486713), (21, 991142), (42, 495571)]