21000539959

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{5701}}^1\times {\mathrm{9929}}^1$

素因数の和:15690

約数の個数: 16

約数和(自身を含む): 24460211520

約数和(自身を除く): 3459671561

約数列:

[1, 7, 53, 371, 5701, 9929, 39907, 69503, 302153, 526237, 2115071, 3683659, 56605229, 396236603, 3000077137, 21000539959]

約数ペア:

[(1, 21000539959), (7, 3000077137), (53, 396236603), (371, 56605229), (5701, 3683659), (9929, 2115071), (39907, 526237), (69503, 302153)]