20478206

素因数分解:

$2^1\times 7^1\times {\mathrm{419}}^1\times {\mathrm{3491}}^1$

素因数の和:3919

約数の個数: 16

約数和(自身を含む): 35199360

約数和(自身を除く): 14721154

約数列:

[1, 2, 7, 14, 419, 838, 2933, 3491, 5866, 6982, 24437, 48874, 1462729, 2925458, 10239103, 20478206]

約数ペア:

[(1, 20478206), (2, 10239103), (7, 2925458), (14, 1462729), (419, 48874), (838, 24437), (2933, 6982), (3491, 5866)]