21428132

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{44273}}^1$

素因数の和:44299

約数の個数: 18

約数和(自身を含む): 41219094

約数和(自身を除く): 19790962

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 44273, 88546, 177092, 487003, 974006, 1948012, 5357033, 10714066, 21428132]

約数ペア:

[(1, 21428132), (2, 10714066), (4, 5357033), (11, 1948012), (22, 974006), (44, 487003), (121, 177092), (242, 88546), (484, 44273)]