20402307

素因数分解:

$3^3\times {\mathrm{157}}^1\times {\mathrm{4813}}^1$

素因数の和:4979

約数の個数: 16

約数和(自身を含む): 30424480

約数和(自身を除く): 10022173

約数列:

[1, 3, 9, 27, 157, 471, 1413, 4239, 4813, 14439, 43317, 129951, 755641, 2266923, 6800769, 20402307]

約数ペア:

[(1, 20402307), (3, 6800769), (9, 2266923), (27, 755641), (157, 129951), (471, 43317), (1413, 14439), (4239, 4813)]