19551399

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{2579}}^1$

素因数の和:2627

約数の個数: 24

約数和(自身を含む): 31455360

約数和(自身を除く): 11903961

約数列:

[1, 3, 7, 19, 21, 57, 133, 361, 399, 1083, 2527, 2579, 7581, 7737, 18053, 49001, 54159, 147003, 343007, 931019, 1029021, 2793057, 6517133, 19551399]

約数ペア:

[(1, 19551399), (3, 6517133), (7, 2793057), (19, 1029021), (21, 931019), (57, 343007), (133, 147003), (361, 54159), (399, 49001), (1083, 18053), (2527, 7737), (2579, 7581)]