28142079

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{311}}^1$

素因数の和:491

約数の個数: 32

約数和(自身を含む): 44728320

約数和(自身を除く): 16586241

約数列:

[1, 3, 7, 21, 31, 93, 139, 217, 311, 417, 651, 933, 973, 2177, 2919, 4309, 6531, 9641, 12927, 28923, 30163, 43229, 67487, 90489, 129687, 202461, 302603, 907809, 1340099, 4020297, 9380693, 28142079]

約数ペア:

[(1, 28142079), (3, 9380693), (7, 4020297), (21, 1340099), (31, 907809), (93, 302603), (139, 202461), (217, 129687), (311, 90489), (417, 67487), (651, 43229), (933, 30163), (973, 28923), (2177, 12927), (2919, 9641), (4309, 6531)]