19459336

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:458

約数の個数: 48

約数和(自身を含む): 40680900

約数和(自身を除く): 21221564

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 74, 104, 148, 169, 296, 338, 389, 481, 676, 778, 962, 1352, 1556, 1924, 3112, 3848, 5057, 6253, 10114, 12506, 14393, 20228, 25012, 28786, 40456, 50024, 57572, 65741, 115144, 131482, 187109, 262964, 374218, 525928, 748436, 1496872, 2432417, 4864834, 9729668, 19459336]

約数ペア:

[(1, 19459336), (2, 9729668), (4, 4864834), (8, 2432417), (13, 1496872), (26, 748436), (37, 525928), (52, 374218), (74, 262964), (104, 187109), (148, 131482), (169, 115144), (296, 65741), (338, 57572), (389, 50024), (481, 40456), (676, 28786), (778, 25012), (962, 20228), (1352, 14393), (1556, 12506), (1924, 10114), (3112, 6253), (3848, 5057)]