289432869

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{251}}^1\times {\mathrm{421}}^1$

素因数の和:769

約数の個数: 32

約数和(自身を含む): 428779008

約数和(自身を除く): 139346139

約数列:

[1, 3, 11, 33, 83, 249, 251, 421, 753, 913, 1263, 2739, 2761, 4631, 8283, 13893, 20833, 34943, 62499, 104829, 105671, 229163, 317013, 384373, 687489, 1153119, 1162381, 3487143, 8770693, 26312079, 96477623, 289432869]

約数ペア:

[(1, 289432869), (3, 96477623), (11, 26312079), (33, 8770693), (83, 3487143), (249, 1162381), (251, 1153119), (421, 687489), (753, 384373), (913, 317013), (1263, 229163), (2739, 105671), (2761, 104829), (4631, 62499), (8283, 34943), (13893, 20833)]