342246639

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{20921}}^1$

素因数の和:20991

約数の個数: 32

約数和(自身を含む): 562383360

約数和(自身を除く): 220136721

約数列:

[1, 3, 7, 19, 21, 41, 57, 123, 133, 287, 399, 779, 861, 2337, 5453, 16359, 20921, 62763, 146447, 397499, 439341, 857761, 1192497, 2573283, 2782493, 6004327, 8347479, 16297459, 18012981, 48892377, 114082213, 342246639]

約数ペア:

[(1, 342246639), (3, 114082213), (7, 48892377), (19, 18012981), (21, 16297459), (41, 8347479), (57, 6004327), (123, 2782493), (133, 2573283), (287, 1192497), (399, 857761), (779, 439341), (861, 397499), (2337, 146447), (5453, 62763), (16359, 20921)]