199941921

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1753}}^1$

素因数の和:1830

約数の個数: 48

約数和(自身を含む): 328348800

約数和(自身を除く): 128406879

約数列:

[1, 3, 9, 19, 23, 29, 57, 69, 87, 171, 207, 261, 437, 551, 667, 1311, 1653, 1753, 2001, 3933, 4959, 5259, 6003, 12673, 15777, 33307, 38019, 40319, 50837, 99921, 114057, 120957, 152511, 299763, 362871, 457533, 766061, 965903, 1169251, 2298183, 2897709, 3507753, 6894549, 8693127, 10523259, 22215769, 66647307, 199941921]

約数ペア:

[(1, 199941921), (3, 66647307), (9, 22215769), (19, 10523259), (23, 8693127), (29, 6894549), (57, 3507753), (69, 2897709), (87, 2298183), (171, 1169251), (207, 965903), (261, 766061), (437, 457533), (551, 362871), (667, 299763), (1311, 152511), (1653, 120957), (1753, 114057), (2001, 99921), (3933, 50837), (4959, 40319), (5259, 38019), (6003, 33307), (12673, 15777)]