198778789

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{20101}}^1$

素因数の和:20172

約数の個数: 16

約数和(自身を含む): 231575040

約数和(自身を除く): 32796251

約数列:

[1, 11, 29, 31, 319, 341, 899, 9889, 20101, 221111, 582929, 623131, 6412219, 6854441, 18070799, 198778789]

約数ペア:

[(1, 198778789), (11, 18070799), (29, 6854441), (31, 6412219), (319, 623131), (341, 582929), (899, 221111), (9889, 20101)]