20475221

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^2$

素因数の和:161

約数の個数: 24

約数和(自身を含む): 24267264

約数和(自身を除く): 3792043

約数列:

[1, 13, 23, 31, 47, 299, 403, 611, 713, 1081, 1457, 2209, 9269, 14053, 18941, 28717, 33511, 50807, 68479, 435643, 660491, 890227, 1575017, 20475221]

約数ペア:

[(1, 20475221), (13, 1575017), (23, 890227), (31, 660491), (47, 435643), (299, 68479), (403, 50807), (611, 33511), (713, 28717), (1081, 18941), (1457, 14053), (2209, 9269)]