19398309

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{811}}^1$

素因数の和:905

約数の個数: 32

約数和(自身を含む): 31804416

約数和(自身を除く): 12406107

約数列:

[1, 3, 7, 17, 21, 51, 67, 119, 201, 357, 469, 811, 1139, 1407, 2433, 3417, 5677, 7973, 13787, 17031, 23919, 41361, 54337, 96509, 163011, 289527, 380359, 923729, 1141077, 2771187, 6466103, 19398309]

約数ペア:

[(1, 19398309), (3, 6466103), (7, 2771187), (17, 1141077), (21, 923729), (51, 380359), (67, 289527), (119, 163011), (201, 96509), (357, 54337), (469, 41361), (811, 23919), (1139, 17031), (1407, 13787), (2433, 7973), (3417, 5677)]