21480837119

素因数分解:

$7^2\times {\mathrm{2309}}^1\times {\mathrm{189859}}^1$

素因数の和:192182

約数の個数: 12

約数和(自身を含む): 24998866200

約数和(自身を除く): 3518029081

約数列:

[1, 7, 49, 2309, 16163, 113141, 189859, 1329013, 9303091, 438384431, 3068691017, 21480837119]

約数ペア:

[(1, 21480837119), (7, 3068691017), (49, 438384431), (2309, 9303091), (16163, 1329013), (113141, 189859)]