81751878

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{20551}}^1$

素因数の和:20589

約数の個数: 48

約数和(自身を含む): 201985056

約数和(自身を除く): 120233178

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 221, 234, 306, 442, 663, 1326, 1989, 3978, 20551, 41102, 61653, 123306, 184959, 267163, 349367, 369918, 534326, 698734, 801489, 1048101, 1602978, 2096202, 2404467, 3144303, 4541771, 4808934, 6288606, 9083542, 13625313, 27250626, 40875939, 81751878]

約数ペア:

[(1, 81751878), (2, 40875939), (3, 27250626), (6, 13625313), (9, 9083542), (13, 6288606), (17, 4808934), (18, 4541771), (26, 3144303), (34, 2404467), (39, 2096202), (51, 1602978), (78, 1048101), (102, 801489), (117, 698734), (153, 534326), (221, 369918), (234, 349367), (306, 267163), (442, 184959), (663, 123306), (1326, 61653), (1989, 41102), (3978, 20551)]