19808847

素因数分解:

$3^3\times {\mathrm{157}}^1\times {\mathrm{4673}}^1$

素因数の和:4839

約数の個数: 16

約数和(自身を含む): 29539680

約数和(自身を除く): 9730833

約数列:

[1, 3, 9, 27, 157, 471, 1413, 4239, 4673, 14019, 42057, 126171, 733661, 2200983, 6602949, 19808847]

約数ペア:

[(1, 19808847), (3, 6602949), (9, 2200983), (27, 733661), (157, 126171), (471, 42057), (1413, 14019), (4239, 4673)]