208745481

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{331}}^1\times {\mathrm{509}}^1$

素因数の和:909

約数の個数: 32

約数和(自身を含む): 325094400

約数和(自身を除く): 116348919

約数列:

[1, 3, 7, 21, 59, 177, 331, 413, 509, 993, 1239, 1527, 2317, 3563, 6951, 10689, 19529, 30031, 58587, 90093, 136703, 168479, 210217, 410109, 505437, 630651, 1179353, 3538059, 9940261, 29820783, 69581827, 208745481]

約数ペア:

[(1, 208745481), (3, 69581827), (7, 29820783), (21, 9940261), (59, 3538059), (177, 1179353), (331, 630651), (413, 505437), (509, 410109), (993, 210217), (1239, 168479), (1527, 136703), (2317, 90093), (3563, 58587), (6951, 30031), (10689, 19529)]