16980775

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5107}}^1$

素因数の和:5143

約数の個数: 24

約数和(自身を含む): 25335680

約数和(自身を除く): 8354905

約数列:

[1, 5, 7, 19, 25, 35, 95, 133, 175, 475, 665, 3325, 5107, 25535, 35749, 97033, 127675, 178745, 485165, 679231, 893725, 2425825, 3396155, 16980775]

約数ペア:

[(1, 16980775), (5, 3396155), (7, 2425825), (19, 893725), (25, 679231), (35, 485165), (95, 178745), (133, 127675), (175, 97033), (475, 35749), (665, 25535), (3325, 5107)]