19989507

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{1373}}^1$

素因数の和:1610

約数の個数: 16

約数和(自身を含む): 27963648

約数和(自身を除く): 7974141

約数列:

[1, 3, 23, 69, 211, 633, 1373, 4119, 4853, 14559, 31579, 94737, 289703, 869109, 6663169, 19989507]

約数ペア:

[(1, 19989507), (3, 6663169), (23, 869109), (69, 289703), (211, 94737), (633, 31579), (1373, 14559), (4119, 4853)]