19185556

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{101}}^1\times {\mathrm{281}}^1$

素因数の和:412

約数の個数: 36

約数和(自身を含む): 36846684

約数和(自身を除く): 17661128

約数列:

[1, 2, 4, 13, 26, 52, 101, 169, 202, 281, 338, 404, 562, 676, 1124, 1313, 2626, 3653, 5252, 7306, 14612, 17069, 28381, 34138, 47489, 56762, 68276, 94978, 113524, 189956, 368953, 737906, 1475812, 4796389, 9592778, 19185556]

約数ペア:

[(1, 19185556), (2, 9592778), (4, 4796389), (13, 1475812), (26, 737906), (52, 368953), (101, 189956), (169, 113524), (202, 94978), (281, 68276), (338, 56762), (404, 47489), (562, 34138), (676, 28381), (1124, 17069), (1313, 14612), (2626, 7306), (3653, 5252)]