19919733

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 30176640

約数和(自身を除く): 10256907

約数列:

[1, 3, 17, 19, 51, 57, 61, 183, 323, 337, 969, 1011, 1037, 1159, 3111, 3477, 5729, 6403, 17187, 19209, 19703, 20557, 59109, 61671, 108851, 326553, 349469, 390583, 1048407, 1171749, 6639911, 19919733]

約数ペア:

[(1, 19919733), (3, 6639911), (17, 1171749), (19, 1048407), (51, 390583), (57, 349469), (61, 326553), (183, 108851), (323, 61671), (337, 59109), (969, 20557), (1011, 19703), (1037, 19209), (1159, 17187), (3111, 6403), (3477, 5729)]