20920004

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{18223}}^1$

素因数の和:18275

約数の個数: 24

約数和(自身を含む): 42862848

約数和(自身を除く): 21942844

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 18223, 36446, 72892, 127561, 255122, 510244, 747143, 1494286, 2988572, 5230001, 10460002, 20920004]

約数ペア:

[(1, 20920004), (2, 10460002), (4, 5230001), (7, 2988572), (14, 1494286), (28, 747143), (41, 510244), (82, 255122), (164, 127561), (287, 72892), (574, 36446), (1148, 18223)]