19919538

素因数分解:

$2^1\times 3^2\times {\mathrm{839}}^1\times {\mathrm{1319}}^1$

素因数の和:2166

約数の個数: 24

約数和(自身を含む): 43243200

約数和(自身を除く): 23323662

約数列:

[1, 2, 3, 6, 9, 18, 839, 1319, 1678, 2517, 2638, 3957, 5034, 7551, 7914, 11871, 15102, 23742, 1106641, 2213282, 3319923, 6639846, 9959769, 19919538]

約数ペア:

[(1, 19919538), (2, 9959769), (3, 6639846), (6, 3319923), (9, 2213282), (18, 1106641), (839, 23742), (1319, 15102), (1678, 11871), (2517, 7914), (2638, 7551), (3957, 5034)]