28379156

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{41981}}^1$

素因数の和:42011

約数の個数: 18

約数和(自身を含む): 53778942

約数和(自身を除く): 25399786

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 41981, 83962, 167924, 545753, 1091506, 2183012, 7094789, 14189578, 28379156]

約数ペア:

[(1, 28379156), (2, 14189578), (4, 7094789), (13, 2183012), (26, 1091506), (52, 545753), (169, 167924), (338, 83962), (676, 41981)]