21550277

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{2003}}^1$

素因数の和:2092

約数の個数: 16

約数和(自身を含む): 25971840

約数和(自身を除く): 4421563

約数列:

[1, 7, 29, 53, 203, 371, 1537, 2003, 10759, 14021, 58087, 106159, 406609, 743113, 3078611, 21550277]

約数ペア:

[(1, 21550277), (7, 3078611), (29, 743113), (53, 406609), (203, 106159), (371, 58087), (1537, 14021), (2003, 10759)]