28521116

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{1361}}^1$

素因数の和:1422

約数の個数: 36

約数和(自身を含む): 55831104

約数和(自身を除く): 27309988

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 169, 338, 403, 676, 806, 1361, 1612, 2722, 5239, 5444, 10478, 17693, 20956, 35386, 42191, 70772, 84382, 168764, 230009, 460018, 548483, 920036, 1096966, 2193932, 7130279, 14260558, 28521116]

約数ペア:

[(1, 28521116), (2, 14260558), (4, 7130279), (13, 2193932), (26, 1096966), (31, 920036), (52, 548483), (62, 460018), (124, 230009), (169, 168764), (338, 84382), (403, 70772), (676, 42191), (806, 35386), (1361, 20956), (1612, 17693), (2722, 10478), (5239, 5444)]