28311156723

素因数分解:

$3^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1\times {\mathrm{271}}^1\times {\mathrm{1619}}^1$

素因数の和:2187

約数の個数: 32

約数和(自身を含む): 38430858240

約数和(自身を除く): 10119701517

約数列:

[1, 3, 137, 157, 271, 411, 471, 813, 1619, 4857, 21509, 37127, 42547, 64527, 111381, 127641, 221803, 254183, 438749, 665409, 762549, 1316247, 5828939, 17486817, 34823071, 60108613, 68883593, 104469213, 180325839, 206650779, 9437052241, 28311156723]

約数ペア:

[(1, 28311156723), (3, 9437052241), (137, 206650779), (157, 180325839), (271, 104469213), (411, 68883593), (471, 60108613), (813, 34823071), (1619, 17486817), (4857, 5828939), (21509, 1316247), (37127, 762549), (42547, 665409), (64527, 438749), (111381, 254183), (127641, 221803)]