20303913

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{337}}^1$

素因数の和:517

約数の個数: 32

約数和(自身を含む): 32880640

約数和(自身を除く): 12576727

約数列:

[1, 3, 7, 19, 21, 57, 133, 151, 337, 399, 453, 1011, 1057, 2359, 2869, 3171, 6403, 7077, 8607, 19209, 20083, 44821, 50887, 60249, 134463, 152661, 356209, 966853, 1068627, 2900559, 6767971, 20303913]

約数ペア:

[(1, 20303913), (3, 6767971), (7, 2900559), (19, 1068627), (21, 966853), (57, 356209), (133, 152661), (151, 134463), (337, 60249), (399, 50887), (453, 44821), (1011, 20083), (1057, 19209), (2359, 8607), (2869, 7077), (3171, 6403)]