20707248

素因数分解:

$2^4\times 3^1\times {\mathrm{389}}^1\times {\mathrm{1109}}^1$

素因数の和:1509

約数の個数: 40

約数和(自身を含む): 53679600

約数和(自身を除く): 32972352

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 389, 778, 1109, 1167, 1556, 2218, 2334, 3112, 3327, 4436, 4668, 6224, 6654, 8872, 9336, 13308, 17744, 18672, 26616, 53232, 431401, 862802, 1294203, 1725604, 2588406, 3451208, 5176812, 6902416, 10353624, 20707248]

約数ペア:

[(1, 20707248), (2, 10353624), (3, 6902416), (4, 5176812), (6, 3451208), (8, 2588406), (12, 1725604), (16, 1294203), (24, 862802), (48, 431401), (389, 53232), (778, 26616), (1109, 18672), (1167, 17744), (1556, 13308), (2218, 9336), (2334, 8872), (3112, 6654), (3327, 6224), (4436, 4668)]