20903523

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{6947}}^1$

素因数の和:7026

約数の個数: 16

約数和(自身を含む): 30015360

約数和(自身を除く): 9111837

約数列:

[1, 3, 17, 51, 59, 177, 1003, 3009, 6947, 20841, 118099, 354297, 409873, 1229619, 6967841, 20903523]

約数ペア:

[(1, 20903523), (3, 6967841), (17, 1229619), (51, 409873), (59, 354297), (177, 118099), (1003, 20841), (3009, 6947)]