199586751

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1471}}^1$

素因数の和:1572

約数の個数: 48

約数和(自身を含む): 338300928

約数和(自身を除く): 138714177

約数列:

[1, 3, 7, 13, 21, 39, 49, 71, 91, 147, 213, 273, 497, 637, 923, 1471, 1491, 1911, 2769, 3479, 4413, 6461, 10297, 10437, 19123, 19383, 30891, 45227, 57369, 72079, 104441, 133861, 135681, 216237, 313323, 401583, 731087, 937027, 1357733, 2193261, 2811081, 4073199, 5117609, 9504131, 15352827, 28512393, 66528917, 199586751]

約数ペア:

[(1, 199586751), (3, 66528917), (7, 28512393), (13, 15352827), (21, 9504131), (39, 5117609), (49, 4073199), (71, 2811081), (91, 2193261), (147, 1357733), (213, 937027), (273, 731087), (497, 401583), (637, 313323), (923, 216237), (1471, 135681), (1491, 133861), (1911, 104441), (2769, 72079), (3479, 57369), (4413, 45227), (6461, 30891), (10297, 19383), (10437, 19123)]