20405636

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{953}}^1$

素因数の和:1111

約数の個数: 24

約数和(自身を含む): 36782424

約数和(自身を除く): 16376788

約数列:

[1, 2, 4, 53, 101, 106, 202, 212, 404, 953, 1906, 3812, 5353, 10706, 21412, 50509, 96253, 101018, 192506, 202036, 385012, 5101409, 10202818, 20405636]

約数ペア:

[(1, 20405636), (2, 10202818), (4, 5101409), (53, 385012), (101, 202036), (106, 192506), (202, 101018), (212, 96253), (404, 50509), (953, 21412), (1906, 10706), (3812, 5353)]