21649397

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{3559}}^1$

素因数の和:3656

約数の個数: 16

約数和(自身を含む): 27340800

約数和(自身を除く): 5691403

約数列:

[1, 7, 11, 77, 79, 553, 869, 3559, 6083, 24913, 39149, 274043, 281161, 1968127, 3092771, 21649397]

約数ペア:

[(1, 21649397), (7, 3092771), (11, 1968127), (77, 281161), (79, 274043), (553, 39149), (869, 24913), (3559, 6083)]