28724157

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{229}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 52241280

約数和(自身を除く): 23517123

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 181, 229, 231, 543, 687, 693, 1267, 1603, 1629, 1991, 2061, 2519, 3801, 4809, 5973, 7557, 11403, 13937, 14427, 17633, 17919, 22671, 41449, 41811, 52899, 124347, 125433, 158697, 290143, 373041, 455939, 870429, 1367817, 2611287, 3191573, 4103451, 9574719, 28724157]

約数ペア:

[(1, 28724157), (3, 9574719), (7, 4103451), (9, 3191573), (11, 2611287), (21, 1367817), (33, 870429), (63, 455939), (77, 373041), (99, 290143), (181, 158697), (229, 125433), (231, 124347), (543, 52899), (687, 41811), (693, 41449), (1267, 22671), (1603, 17919), (1629, 17633), (1991, 14427), (2061, 13937), (2519, 11403), (3801, 7557), (4809, 5973)]