28565985

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1381}}^1$

素因数の和:1593

約数の個数: 32

約数和(自身を含む): 52538112

約数和(自身を除く): 23972127

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 197, 591, 985, 1379, 1381, 2955, 4137, 4143, 6895, 6905, 9667, 20685, 20715, 29001, 48335, 145005, 272057, 816171, 1360285, 1904399, 4080855, 5713197, 9521995, 28565985]

約数ペア:

[(1, 28565985), (3, 9521995), (5, 5713197), (7, 4080855), (15, 1904399), (21, 1360285), (35, 816171), (105, 272057), (197, 145005), (591, 48335), (985, 29001), (1379, 20715), (1381, 20685), (2955, 9667), (4137, 6905), (4143, 6895)]