31607811

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 51891840

約数和(自身を除く): 20284029

約数列:

[1, 3, 9, 17, 19, 51, 57, 83, 131, 153, 171, 249, 323, 393, 747, 969, 1179, 1411, 1577, 2227, 2489, 2907, 4233, 4731, 6681, 7467, 10873, 12699, 14193, 20043, 22401, 26809, 32619, 42313, 80427, 97857, 126939, 184841, 206587, 241281, 380817, 554523, 619761, 1663569, 1859283, 3511979, 10535937, 31607811]

約数ペア:

[(1, 31607811), (3, 10535937), (9, 3511979), (17, 1859283), (19, 1663569), (51, 619761), (57, 554523), (83, 380817), (131, 241281), (153, 206587), (171, 184841), (249, 126939), (323, 97857), (393, 80427), (747, 42313), (969, 32619), (1179, 26809), (1411, 22401), (1577, 20043), (2227, 14193), (2489, 12699), (2907, 10873), (4233, 7467), (4731, 6681)]