19807256

素因数分解:

$2^3\times 7^1\times {\mathrm{577}}^1\times {\mathrm{613}}^1$

素因数の和:1203

約数の個数: 32

約数和(自身を含む): 42587040

約数和(自身を除く): 22779784

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 577, 613, 1154, 1226, 2308, 2452, 4039, 4291, 4616, 4904, 8078, 8582, 16156, 17164, 32312, 34328, 353701, 707402, 1414804, 2475907, 2829608, 4951814, 9903628, 19807256]

約数ペア:

[(1, 19807256), (2, 9903628), (4, 4951814), (7, 2829608), (8, 2475907), (14, 1414804), (28, 707402), (56, 353701), (577, 34328), (613, 32312), (1154, 17164), (1226, 16156), (2308, 8582), (2452, 8078), (4039, 4904), (4291, 4616)]