18682377

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{6689}}^1$

素因数の和:6725

約数の個数: 24

約数和(自身を含む): 30506400

約数和(自身を除く): 11824023

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 6689, 20067, 46823, 127091, 140469, 327761, 381273, 889637, 983283, 2668911, 6227459, 18682377]

約数ペア:

[(1, 18682377), (3, 6227459), (7, 2668911), (19, 983283), (21, 889637), (49, 381273), (57, 327761), (133, 140469), (147, 127091), (399, 46823), (931, 20067), (2793, 6689)]