20489414

素因数分解:

$2^1\times {\mathrm{11}}^3\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 34784640

約数和(自身を除く): 14295226

約数列:

[1, 2, 11, 22, 43, 86, 121, 179, 242, 358, 473, 946, 1331, 1969, 2662, 3938, 5203, 7697, 10406, 15394, 21659, 43318, 57233, 84667, 114466, 169334, 238249, 476498, 931337, 1862674, 10244707, 20489414]

約数ペア:

[(1, 20489414), (2, 10244707), (11, 1862674), (22, 931337), (43, 476498), (86, 238249), (121, 169334), (179, 114466), (242, 84667), (358, 57233), (473, 43318), (946, 21659), (1331, 15394), (1969, 10406), (2662, 7697), (3938, 5203)]