21650871

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{12379}}^1$

素因数の和:12446

約数の個数: 16

約数和(自身を含む): 32088960

約数和(自身を除く): 10438089

約数列:

[1, 3, 11, 33, 53, 159, 583, 1749, 12379, 37137, 136169, 408507, 656087, 1968261, 7216957, 21650871]

約数ペア:

[(1, 21650871), (3, 7216957), (11, 1968261), (33, 656087), (53, 408507), (159, 136169), (583, 37137), (1749, 12379)]