19396587

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{281}}^1$

素因数の和:483

約数の個数: 32

約数和(自身を含む): 31403520

約数和(自身を除く): 12006933

約数列:

[1, 3, 7, 19, 21, 57, 133, 173, 281, 399, 519, 843, 1211, 1967, 3287, 3633, 5339, 5901, 9861, 16017, 23009, 37373, 48613, 69027, 112119, 145839, 340291, 923647, 1020873, 2770941, 6465529, 19396587]

約数ペア:

[(1, 19396587), (3, 6465529), (7, 2770941), (19, 1020873), (21, 923647), (57, 340291), (133, 145839), (173, 112119), (281, 69027), (399, 48613), (519, 37373), (843, 23009), (1211, 16017), (1967, 9861), (3287, 5901), (3633, 5339)]