19801403

素因数分解:

${\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:322

約数の個数: 16

約数和(自身を含む): 21254400

約数和(自身を除く): 1452997

約数列:

[1, 29, 59, 71, 163, 1711, 2059, 4189, 4727, 9617, 11573, 121481, 278893, 335617, 682807, 19801403]

約数ペア:

[(1, 19801403), (29, 682807), (59, 335617), (71, 278893), (163, 121481), (1711, 11573), (2059, 9617), (4189, 4727)]