1979821018

素因数分解:

$2^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{670217}}^1$

素因数の和:670437

約数の個数: 16

約数和(自身を含む): 3410069184

約数和(自身を除く): 1430248166

約数列:

[1, 2, 7, 14, 211, 422, 1477, 2954, 670217, 1340434, 4691519, 9383038, 141415787, 282831574, 989910509, 1979821018]

約数ペア:

[(1, 1979821018), (2, 989910509), (7, 282831574), (14, 141415787), (211, 9383038), (422, 4691519), (1477, 1340434), (2954, 670217)]