19961718

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1579}}^1$

素因数の和:1641

約数の個数: 48

約数和(自身を含む): 47551680

約数和(自身を除く): 27589962

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 49, 86, 98, 129, 147, 258, 294, 301, 602, 903, 1579, 1806, 2107, 3158, 4214, 4737, 6321, 9474, 11053, 12642, 22106, 33159, 66318, 67897, 77371, 135794, 154742, 203691, 232113, 407382, 464226, 475279, 950558, 1425837, 2851674, 3326953, 6653906, 9980859, 19961718]

約数ペア:

[(1, 19961718), (2, 9980859), (3, 6653906), (6, 3326953), (7, 2851674), (14, 1425837), (21, 950558), (42, 475279), (43, 464226), (49, 407382), (86, 232113), (98, 203691), (129, 154742), (147, 135794), (258, 77371), (294, 67897), (301, 66318), (602, 33159), (903, 22106), (1579, 12642), (1806, 11053), (2107, 9474), (3158, 6321), (4214, 4737)]