19890493

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{2833}}^1$

素因数の和:2916

約数の個数: 16

約数和(自身を含む): 24485760

約数和(自身を除く): 4595267

約数列:

[1, 7, 17, 59, 119, 413, 1003, 2833, 7021, 19831, 48161, 167147, 337127, 1170029, 2841499, 19890493]

約数ペア:

[(1, 19890493), (7, 2841499), (17, 1170029), (59, 337127), (119, 167147), (413, 48161), (1003, 19831), (2833, 7021)]