20565559

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{547}}^1$

素因数の和:726

約数の個数: 16

約数和(自身を含む): 24304896

約数和(自身を除く): 3739337

約数列:

[1, 7, 41, 131, 287, 547, 917, 3829, 5371, 22427, 37597, 71657, 156989, 501599, 2937937, 20565559]

約数ペア:

[(1, 20565559), (7, 2937937), (41, 501599), (131, 156989), (287, 71657), (547, 37597), (917, 22427), (3829, 5371)]