172821207

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^2\times {\mathrm{67}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 269682560

約数和(自身を除く): 96861353

約数列:

[1, 3, 13, 19, 39, 57, 59, 67, 177, 201, 247, 741, 767, 871, 1121, 1273, 2301, 2613, 3363, 3481, 3819, 3953, 10443, 11859, 14573, 16549, 43719, 45253, 49647, 51389, 66139, 75107, 135759, 154167, 198417, 225321, 233227, 699681, 859807, 976391, 2579421, 2929173, 3031951, 4431313, 9095853, 13293939, 57607069, 172821207]

約数ペア:

[(1, 172821207), (3, 57607069), (13, 13293939), (19, 9095853), (39, 4431313), (57, 3031951), (59, 2929173), (67, 2579421), (177, 976391), (201, 859807), (247, 699681), (741, 233227), (767, 225321), (871, 198417), (1121, 154167), (1273, 135759), (2301, 75107), (2613, 66139), (3363, 51389), (3481, 49647), (3819, 45253), (3953, 43719), (10443, 16549), (11859, 14573)]