19995087

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{7159}}^1$

素因数の和:7195

約数の個数: 24

約数和(自身を含む): 32649600

約数和(自身を除く): 12654513

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 7159, 21477, 50113, 136021, 150339, 350791, 408063, 952147, 1052373, 2856441, 6665029, 19995087]

約数ペア:

[(1, 19995087), (3, 6665029), (7, 2856441), (19, 1052373), (21, 952147), (49, 408063), (57, 350791), (133, 150339), (147, 136021), (399, 50113), (931, 21477), (2793, 7159)]