28118895

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{571}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 53209728

約数和(自身を除く): 25090833

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 67, 105, 147, 201, 245, 335, 469, 571, 735, 1005, 1407, 1713, 2345, 2855, 3283, 3997, 7035, 8565, 9849, 11991, 16415, 19985, 27979, 38257, 49245, 59955, 83937, 114771, 139895, 191285, 267799, 419685, 573855, 803397, 1338995, 1874593, 4016985, 5623779, 9372965, 28118895]

約数ペア:

[(1, 28118895), (3, 9372965), (5, 5623779), (7, 4016985), (15, 1874593), (21, 1338995), (35, 803397), (49, 573855), (67, 419685), (105, 267799), (147, 191285), (201, 139895), (245, 114771), (335, 83937), (469, 59955), (571, 49245), (735, 38257), (1005, 27979), (1407, 19985), (1713, 16415), (2345, 11991), (2855, 9849), (3283, 8565), (3997, 7035)]