21409754

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{349}}^1\times {\mathrm{829}}^1$

素因数の和:1217

約数の個数: 16

約数和(自身を含む): 33117000

約数和(自身を除く): 11707246

約数列:

[1, 2, 37, 74, 349, 698, 829, 1658, 12913, 25826, 30673, 61346, 289321, 578642, 10704877, 21409754]

約数ペア:

[(1, 21409754), (2, 10704877), (37, 578642), (74, 289321), (349, 61346), (698, 30673), (829, 25826), (1658, 12913)]