19642221

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{521}}^1$

素因数の和:657

約数の個数: 24

約数和(自身を含む): 29315520

約数和(自身を除く): 9673299

約数列:

[1, 3, 9, 59, 71, 177, 213, 521, 531, 639, 1563, 4189, 4689, 12567, 30739, 36991, 37701, 92217, 110973, 276651, 332919, 2182469, 6547407, 19642221]

約数ペア:

[(1, 19642221), (3, 6547407), (9, 2182469), (59, 332919), (71, 276651), (177, 110973), (213, 92217), (521, 37701), (531, 36991), (639, 30739), (1563, 12567), (4189, 4689)]