19687868

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{1907}}^1$

素因数の和:2029

約数の個数: 24

約数和(自身を含む): 36061200

約数和(自身を除く): 16373332

約数列:

[1, 2, 4, 29, 58, 89, 116, 178, 356, 1907, 2581, 3814, 5162, 7628, 10324, 55303, 110606, 169723, 221212, 339446, 678892, 4921967, 9843934, 19687868]

約数ペア:

[(1, 19687868), (2, 9843934), (4, 4921967), (29, 678892), (58, 339446), (89, 221212), (116, 169723), (178, 110606), (356, 55303), (1907, 10324), (2581, 7628), (3814, 5162)]