19558209

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{191}}^1$

素因数の和:341

約数の個数: 32

約数和(自身を含む): 29859840

約数和(自身を除く): 10301631

約数列:

[1, 3, 11, 29, 33, 87, 107, 191, 319, 321, 573, 957, 1177, 2101, 3103, 3531, 5539, 6303, 9309, 16617, 20437, 34133, 60929, 61311, 102399, 182787, 224807, 592673, 674421, 1778019, 6519403, 19558209]

約数ペア:

[(1, 19558209), (3, 6519403), (11, 1778019), (29, 674421), (33, 592673), (87, 224807), (107, 182787), (191, 102399), (319, 61311), (321, 60929), (573, 34133), (957, 20437), (1177, 16617), (2101, 9309), (3103, 6303), (3531, 5539)]